Способ прогнозирования ближайших послеоперационных сердечно-сосудистых осложнений у больных, перенесших оперативное лечение по поводу рака билиопанкреатодуоденальной зоны

Изобретение относится к медицине, в частности к хирургии, онкологии, кардиологии и функциональной диагностике, и может применяться в прогнозировании осложнений со стороны сердечно-сосудистой системы в ближайшем послеоперационном периоде у больных пожилого и старческого возраста, перенесших оперативное лечение по поводу рака билиопанкреатодуоденальной зоны. У больных при оперативном лечении по поводу рака билиопанкреатодуоденальной зоны осуществляют оценку эхокардиографических показателей функции желудочков сердца путем определения индекса ремоделирования левых камер сердца по формуле:где ИРлкс - индекс ремоделирования левых камер сердца, Vлж - объем левого желудочка, Vлп - объем левого предсердия в фазу диастолы. По величине ИРлкс прогнозируют развитие сердечной недостаточности с возможной аритмией. Способ позволяет повысить эффективность диагностики послеоперационных сердечно-сосудистых осложнений у больных пожилого и старческого возраста за счет оценки эхокардиографических показателей ...

Способ определения периферического сопротивления

Изобретение относится к медицине, а именно к функциональной диагностике, и может быть использовано при определении периферического сопротивления в артериях. Для этого в спектральном допплеровском режиме определяют двунаправленный ортоградный и контралатеральный артериальный кровотоки путем пережатия манжетой плечевой артерии. При этом во время пережатия фиксируют систолическую скорость кровотока над базовой линией – ортоградный артериальный кровоток. После снятия манжеты фиксируют систолическую скорость кровотока под базовой линией – контралатеральный артериальный кровоток. Периферическое сопротивление в артериях определяют как отношение высот максимального контралатерального кровотока к максимальному ортоградному. Способ обеспечивает точное определение периферического сопротивления сосудов при возможности его использования у широкого контингента пациентов. 3 пр.

СПОСОБ ДИАГНОСТИКИ УГРОЖАЮЩЕГО СОСТОЯНИЯ ПЛОДА

Изобретение относится к медицине. Определяют сторону преимущественного расположения плаценты с помощью двумерного ультразвукового исследования. Осуществляют доплерометрическое измерение показателей кровотока в левой и правой почечных артериях плода. Определяют разницу между показателями систолодиастолического соотношения левой почечной артерии и систолодиастолического соотношения правой почечной артерии. В том случае, если данная разница превышает 20% от показателя систолодиастолического соотношения левой почечной артерии при левостороннем расположении плаценты, то диагностируют угрожающее состояние плода. Способ позволяет повысить точность диагностики состояния плода, что способствует выработке рациональной тактики ведения беременности и родов.

СПОСОБ РАННЕЙ ДИАГНОСТИКИ ОРТОСТАТИЧЕСКОЙ НЕДОСТАТОЧНОСТИ У ПАЦИЕНТОВ С МАЛЫМИ АНОМАЛИЯМИ СЕРДЦА

Способ ранней диагностики ортостатической недостаточности у пациентов с малыми аномалиями сердца, включающий суточное мониторирование артериального давления, ортостатическую пробу, отличающийся верификацией малых аномалий сердца, внешних стигм дизэмбриогенеза, проведением активной ортостатической пробы.

СПОСОБ ПРОГНОЗИРОВАНИЯ БЛИЖАЙШИХ ПОСЛЕОПЕРАЦИОННЫХ ОСЛОЖНЕНИЙ СО СТОРОНЫ СЕРДЕЧНО-СОСУДИСТОЙ И ДЫХАТЕЛЬНОЙ СИСТЕМ У БОЛЬНЫХ СТАРШЕЙ ВОЗРАСТНОЙ ГРУППЫ, ПЕРЕНЕСШИХ РЕЗЕКЦИЮ ПИЩЕВОДА ПО ПОВОДУ РАКА

Изобретение относится к медицине, в частности к хирургии, онкологии, кардиологии и функциональной диагностике. В предоперационном периоде на 1-е и 10-11-е сутки после операции выполняют допплерэхокардиографию и при величине среднего расчетного давления в легочной артерии выше 22 мм рт.ст. прогнозируют развитие тромбоэмболических осложнений в малом круге кровообращения. Способ позволяет эффективно прогнозировать послеоперационные осложнения со стороны сердечно-сосудистой и дыхательной систем у больных пожилого и старческого возраста, перенесших резекцию пищевода по поводу рака. 2 пр.

Способ определения декомпрессионной устойчивости водолазов

Способ определения декомпрессионной устойчивости водолазов, включающий оценку состояния организма с применением ультразвука, отличающийся тем, что устойчивость оценивают путем измерения систолического давления в малом круге кровообращения в условиях физиологического покоя, при этом при значении систолического давления менее 10 мм рт. ст. устанавливают высокую устойчивость к декомпрессионной болезни, при значении от 10 до 15 мм рт. ст. - среднюю, выше 15 мм рт. ст. - низкую.

СПОСОБ ПРОГНОЗИРОВАНИЯ ХРОНИЧЕСКОГО ЛЕГОЧНОГО СЕРДЦА

Изобретение относится к медицине, а именно к пульмонологии. Измеряют объем форсированного выдоха за 1 секунду (ОФВ1) в л. Определяют изменение объема форсированного выдоха за 1 секунду (ΔОФВ1) в % от исходной величины после бронхопровокационной пробы с 0,1% раствором ацетилхолина хлорида. Вычисляют систолическое давление в легочной артерии (СДЛА) в мм рт.ст. и отношение максимальных скоростей кровотока через трикуспидальный клапан в диастолу (Е/А). Решают дискриминантное уравнение: Д=-13,359·ОФВ1-1,228·ΔОФВ1+0, 269·СДЛА-3,517·Е/А, при величине Д больше -9,40 прогнозируют появление хронического легочного сердца в течение года. Способ позволяет повысить точность прогнозирования хронического легочного сердца.

СПОСОБ ОПРЕДЕЛЕНИЯ УРОВНЯ АМПУТАЦИИ ПРИ КРИТИЧЕСКОЙ ИШЕМИИ НИЖНИХ КОНЕЧНОСТЕЙ

Способ определения уровня ампутации при критической ишемии нижних конечностей, включающий измерение артериального давления в нескольких точках конечности и последующее определение индекса регионального систолического давления, отличающийся тем, что измерение артериального давления осуществляют в верхней трети бедра и в точке, расположенной по латеральной поверхности нижней трети бедра в месте слияния сухожилий прямой и наружной косой мышц бедра, выше верхне - наружного края надколенника на 7-10 см, рассчитывают индекс регионального систолического давления, при величине индекса регионального систолического более 0,5 прогноз для определения уровня ампутации нижних конечностей в верхней трети голени считают благоприятным.

СПОСОБ КОНТРОЛЯ ЭФФЕКТИВНОСТИ ЛЕЧЕНИЯ БОЛЬНЫХ ОСТРЫМ ИНФАРКТОМ МИОКАРДА И ПОСТИНФАРКТНЫМ КАРДИОСКЛЕРОЗОМ ИНГИБИТОРАМИ АНГИОТЕНЗИН-ПРЕВРАЩАЮЩЕГО ФЕРМЕНТА

Способ контроля эффективности лечения больных острым инфарктом миокарда и постинфарктным кардиосклерозом ингибиторами ангиотензин-превращающего фермента, заключающийся в допплерографическом исследовании гемодинамических параметров, отличающийся тем, что дополнительно определяется среднее давление в легочной артерии, при исходной величине которого более 20 мм рт.ст. и снижении на 5-й день терапии более, чем на 5 мм рт.ст., указанный вид терапии считается эффективным.

Ultraschall-Untersuchungsgeraet fuer biologische Untersuchungen

BLUTDRUCKMESSGERAET

BLOOD PRESSURE APPARATUS

BLOOD PRESSURE APPARATUS

MECHANISM AND PROCEDURE FOR THE BLUTDRUCKMESSUNG

PROCEDURE AND DEVICE FOR THE UNBLUTIGEN DETERMINATION AND ANNOUNCEMENT OF DYNAMIC PARAMETERS OF THE HUMAN AND ANIMAL INTRAKRANIELLEN MEDIA

Method and device for measuring blood pressure

NON-INVASIVE DETERMINATION OF MECHANICAL CHARACTERISTICS IN THE BODY

NONINVASIVE PREDICTIVE AND/OR ESTIMATIVE BLOOD PRESSURE MONITORING

Tools and techniques for estimating and/or predicting a patient's current and/or future blood pressure. In some cases, the tools will analyze physiological data captured from the patient against a model of blood pressure values to estimate/predict the patient's blood pressure value. In particular cases, derived parameters, such as a patient's compensatory reserve index ("CRI") can be analyzed against such models, while in other cases, data captured from sensors can be directly analyzed against such models.

Verfahren zur Herstellung eines flexiblen, verstärkten Kunststoffrohres und Vorrichtung zur Durchführung des Verfahrens

Ultraschall-Untersuchungsgerät für biologische Untersuchungen

Verfahren und Vorrichtung zur indirekten Messung des arteriellen Blutdrucks

Blutdrucküberwachungsvorrichtung, mit welcher die Frequenzabweichung von Ultraschallsignalen infolge von Reflexion an einer bewegten Arterienwand erfasst wird

Aktives Messglied mit mehreren elektroakustischen Wandlern für medizinische Ultraschalluntersuchungen

Verfahren und Vorrichtung zur automatischen Messung von arteriellen Blutdruckwerten mittels Ultraschall

Elektrische Einrichtung zur Untersuchung und Überwachung der Bewegung von Teilen innerer Organe eines lebenden Organismus

Vorrichtung zur indirekten Blutdruckmessung

Automatic apparatus for taking blood pressure

The apparatus is of the type not using an inflatable pneumatic cuff. It comprises a casing (1) fitted with a flexible end wall (2), and it contains a measurement chamber (3), a piezoelectric transmitter (11), a piezoelectric receiver (12) employing the Doppler effect, as well as a piezoelectric pressure sensor (8). This pressure sensor (8) is connected to a measurement (18) and display (15) circuit. The display (15) is controlled by the Doppler receiver (12). This apparatus makes it possible automatically to measure the blood pressure of the patient by simple application of the flexible wall (2) against a limb of the patient.

Procedure and equipment for continuous measuring of the blood pressure for monitoring purposes.

Das Verfahren besteht darin, dass an der Hautoberfläche in Handgelenknähe gleichzeitig erstens mit mindestens einem piezoelektrischen Drucksensor der Auflagedruck und seine überlagerten Druckschwankungen gemessen werden, und zweitens der Luftdruck mit einem piezoelektrischen Drucksensor, sowie drittens der Blutdurchfluss an der Mess-Stelle mittels eines Infrarotsenders und zugehörigen Detektors. Hernach werden die so gemessenen elektrischen Signale mittels Algorithmen in Blutdruckwerte umgerechnet. Zusätzlich kann als weitere Einflussgrösse die Beschleunigung der Mess-Stelle mittels eines Beschleunigungs-Sensors erfasst und im Messergebnis kompensiert werden. Das Gerät für die Umsetzung des Verfahrens besteht aus einem Armband (2) mit einer darin integrierten, nach innen gerichteten Auflageplatte (1), welche mindestens einen piezoelektrischen Drucksensor (6) enthält. Die Auflageplatte (1) enthält einen Infrarotsender und zugehörigen Detektor, und auf der Aussenseite der Platte ist ein piezoelektrischer ...

METHOD AND DEVICE FOR DETERMINING BLOOD PRESSURE NON-INVASIVELY.

ultrasonic measure combination with a pressure measuring device for, and system and method for [...].

Die Erfindung umfasst eine Druckmessvorrichtung (300), die mit einer Ultraschallmesseinheit (350) kombinierbar oder mit dieser kombiniert ist und die mit ultraschalldurchlässigen Fenstern ausgestattet ist, wobei eines dieser Fenster nachgiebig ist, um Druck weitergeben zu können, der von einem Gewebe ausgeht. Dieser Druck wird an eine Messflüssigkeit weitergegeben. An das Volumen der Messflüssigkeit ist ein Drucksensor (325) angekoppelt, welcher Drucksignale misst, wobei die Signale mittels Verbindungskabel oder Funkverbindung an eine Anzeigeeinheit oder Auswertevorrichtung (210, 130) weitergeben werden. Der zugrunde liegende für die Druckmessvorrichtung ermittelte Druck wird dann als Venendruck bestimmt. Die Erfindung umfasst auch ein Druckmesssystem sowie ein Verfahren zur Blutdruckmessung einer Vene oder eines Organs.

Pressure measuring device for measuring blood pressure of e.g. vein, has pressure sensor that is arranged for measuring the pressure in the liquid in container of ultrasonic measuring unit

The pressure measuring device (300) has an ultrasonic measuring unit (350) comprising a container (330) which is filled with an ultrasound transparent measurement liquid. The container of ultrasonic measuring unit is configured such that ultrasound measurement signal is passed through first and second ultrasound transparent windows and fabric. A pressure sensor (325) is arranged for measuring the pressure in the liquid in container. Independent claims are included for the following: (1) pressure measurement system; and (2) method for blood pressure measurement of vein or organ.

СПОСОБ КОРРЕКЦИИ ИНДЕКСА МИОКАРДИАЛЬНОЙ СОСТОЯТЕЛЬНОСТИ B ОСТРЫЙ ПЕРИОД ИНФАРКТА МИОКАРДА C ЭЛЕВАЦИЕЙ СЕГМЕНТА ST

Способ коррекции индекса миокардиальной состоятельности включает в себя применение лекарственных средств и проведение эхокардиографического обследования с допплерометрической оценкой и определением индекса миокардиальной состоятельности. Больному в острый период инфаркта миокарда с элевацией сегмента ST назначают ингибитор ГМГ-КоА редуктазы - симвастатин.

СПОСОБ ДИФФЕРЕНЦИАЛЬНОЙ ДИАГНОСТИКИ ГИПЕРАЛЬДОСТЕРОНИЗМА ПРИ ИШЕМИЧЕСКОЙ БОЛЕЗНИ СЕРДЦА И ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Способ дифференциальной диагностики гиперальдостеронизма при ишемической болезни сердца и хронической сердечной недостаточности включает определение радиоиммунологическим методом в плазме крови концентрации альдостерона плазмы (КАП), активности ренина плазмы (АРП). Кроме того, дополнительно определяют концентрацию в плазме крови адренокортикотропного гормона (АКТГ), причем при значениях КАП выше 150 пг/мл (контроль 136,9±12,7 пг/мл), значениях АКТГ выше 65 пг/мл (контроль 57,3±7,6 пг/мл) и АРП в пределах или ниже данных контроля (5,7±0,6 нг/мл/год.) диагностируют гиперальдостеронизм центрального генеза, при показателях АКТГ в пределах или ниже данных контроля и АРП выше 6,3 нг/мл/ч диагностируют гиперальдостеронизм периферического генеза, а при увеличении относительно данных контроля показателей АКТГ и АРП - диагностируют гиперальдостеронизм смешанного генеза.

Способ определения типа вегетативной дисфункции при хронической сердечной недостаточности

Способ определения типа вегетативной дисфункции при хронической сердечной недостаточности включает определение по электрокардиограмме продолжительности 50-100 последовательных интервалов R-R и расчета показателей: мода (Мо) - значение наиболее часто встречающегося кардиоинтервала, вариационный размах (ΔХ) - разность между максимальным и минимальным значениями продолжительности интервалов в данном массиве кардиоциклов. Дополнительно определяют соотношение Мо/ΔХ, причем при увеличении показателя Мо/ΔХ более 6,6 диагностируют вегетативную дисфункцию со снижением активности симпатической и парасимпатической системы, при снижении показателя Мо/Δ Х ниже 2,6 диагностируют вегетативную дисфункцию с преимущественным угнетением активности симпатической нервной системы.

СПОСОБ ОПРЕДЕЛЕНИЯ АКТИВНОСТИ СИМПАТОАДРЕНАЛОВОЙ СИСТЕМЫ ПРИ ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Способ определения активности симпатоадреналовой системы (САС) при хронической сердечной недостаточности включает определение изменений артериального давления (АД). АД измеряют до и через 2 часа после приема 2 мг блокатора α-1-адренорецепторов данной системы празозина. При отсутствии изменений систолического АД после приема празозина диагностируют сниженную активность САС, а при снижении систолического AT более чем на рт. ст. после приема празозина диагностируют повышенную активность САС.

СПОСОБ ПРОГНОЗИРОВАНИЯ ТЕЧЕНИЯ БЕРЕМЕННОСТИ РАННИХ СРОКОВ ГЕСТАЦИИ

Способ прогнозирования течения беременности ранних сроков гестации относится к медицине, в частности перинатологии, и может быть использован для совершенствования прогнозирования течения беременности ранних сроков гестации с целью снижения частоты невынашивания беременности.

СПОСОБ ПРОГНОЗИРОВАНИЯ РАЗРЫВА СЕРДЦА ПРИ ОСТРОМ ИНФАРКТЕ МИОКАРДА

Изобретение относится к отрасли медицины и касается способа прогнозирования разрыва сердца при остром инфаркте миокарда. Согласно способу по данным ультразвукового допплерского исследования измеряют фактическую скорость роста давления в левом желудочке в начале систолы и объемную скорость выбросов в выносном тракте левого желудочка. Дальше определяют индекс разрыва как их соотношение к аналогичным надлежащим величинам, при увеличении этого индекса более чем в 1,5 раза прогнозируют разрыв сердечной мышцы.

СПОСОБ ПРОГНОЗИРОВАНИЯ РИСКА ПРЕЖДЕВРЕМЕННЫХ РОДОВ У БЕРЕМЕННЫХ С ПИЕЛОНЕФРИТОМ

Изобретение относится к медицине, а именно к акушерству и может быть использовано для прогнозирования преждевременных родов у беременных с пиелонефритом. Способ прогнозирования риска преждевременных родов включает клинико-анамнестическое и лабораторное исследования с определением прогностических коэффициентов, суммирование выявленных прогностических коэффициентов, при этом у беременных с пиелонефритом учитывают его форму и степень тяжести, клиническую картину, дополнительно определяют в моче наличие бактериурии, лейкоцитурии, протеинурии, цилиндрурии, молекул средней массы (МСМ), определяют уровень артериального давления (АД) и проводят ультразвуковое исследование почек, и при сумме прогностических коэффициентов - 13 и меньше прогнозируют низкий риск, при сумме прогностических коэффициентов от +20 до -13 прогнозируют средний риск, при сумме прогностических коэффициентов +20 и выше прогнозируют высокий риск преждевременных родов у беременных с пиелонефритом. Предлагаемый способ позволяет ...

СПОСІБ ДИФЕРЕНЦІЙНОЇ ДІАГНОСТИКИ ЗАХВОРЮВАНЬ ПЕРЕДМІХУРОВОЇ ЗАЛОЗИ

Спосіб диференційної діагностики захворювань передміхурової залози включає дослідження кровотечі в судинах з використанням дуплексного сканування, причому додатково визначають індекси резистентності кровотечі в артеріях передміхурової залози та при їхніх значеннях у межах від 0,65 - 0,75 діагностують норму, при значеннях вище 0,75 судять про склероз залози, а при значеннях нижче 0,65 судять про наявність запального процесу.

METHOD FOR DEFINING BOUNDARIES OF MALIGNANT TUMORS OF FEMUR

Способ диагностики нарушения тканевой перфузии при хронической ишемии головного мозга

Способ диагностики нарушения тканевой перфузии при хронической ишемии головного мозга, заключающийся в том, что на плечо пациента накладывают манжетку манометра, измеряют систолическое давление, допплерографически с использованием высо-ко-частотного ультразвукового датчика с частотой излучения 20 МГц на тыльной поверхно-сти основания первого пальца кисти определяют исходное значение систолической объем-ной скорости кровотока, затем создают в течение 1 мин компрессию, на 30 мм рт. ст. превышающую систолическое давление, осуществляют декомпрессию, через 2 мин определяют систолическую объемную скорость кровотока и диагностируют нарушение тканевой перфузии при хронической ишемии головного мозга при увеличении систолической объемной скорости кровотока менее чем на 37 % от ее исходного значения.

СПОСОБ ДИАГНОСТИКИ ВЕРТЕБРОБАЗИЛЯРНОЙ НЕДОСТАТОЧНОСТИ

Способ диагностики вертебробазилярной недостаточности включает проведение биомикроскопии бульбарной конъюнктивы. У больного визуализируют изменения гемомикроциркуляции конъюнктивы глаза, которые коррелируют с асимметрией кровотока по сосудам вертебробазилярного бассейна. Микроскопию конъюнктивы переднего отдела глаза проводят с помощью щелевой лампы ЩЛ-2Б. Микрофотографирование выполняют с помощью цифровой фотокамеры в режиме фотовспышки. Количественную оценку микроскопии проводят по системе B.C. Волкова. Суммируют баллы, и рассчитывают конъюнктивальный индекс.

Direct pressure measurement device

The invention belongs to the field of medical clinical applications and provides a direct pressure measurement device. The direct pressure measurement device has three advantages as follows: 1, the innovative and practical value is high: a pressure measurement pipe is connected with a puncture needle on the basis of a popular and safe intervention technique, and portal venous pressure, namely in-vitro pressure can be directly and accurately measured, so that a practical, convenient and effective clinical method for evaluation of a danger coefficient as well as prevention of massive haemorrhage of a patient suffering from portal venous hypertension is provided and shown in a use method schematic diagram, namely an appended drawing II; 2, perpendicularity of the pressure measurement pipe for measuring pressure can be visually verified: the accuracy problem of portal venous pressure measurement is solved; 3, sterility and safety problems during pressure measurement are solved: the pressure ...

MICRO-MECHANICAL ADJUSTMENT SYSTEM FOR PIEZOELECTRIC TRANSDUCERS

Miniature ultrasonic blood pressure detection device

The utility model discloses a miniature ultrasonic blood pressure detection device which comprises at least one body piezoelectric material sensor, the body piezoelectric material sensor is used for achieving conversion between electric energy and mechanical energy and transmitting and receiving ultrasonic waves, and the face, transmitting and receiving the ultrasonic waves, of the body piezoelectric material sensor faces a detection object; the bulk piezoelectric material sensor is at least provided with a first electrode leading-out end and a second electrode leading-out end; the first circuit board is arranged below the body piezoelectric material sensor, and a sound barrier layer is arranged between the body piezoelectric material sensor and the first circuit board so as to prevent ultrasonic waves of the body piezoelectric material sensor from being transmitted to the first circuit board; and the controller is electrically connected with the first electrode leading-out end and the ...

ULTRASONIC TRANSDUCER ASSEMBLY FOR BIOLOGICAL INSPECTIONS

ULTRASONIC TRANSDUCER ASSEMBLY

NON-INVASIVE, REAL-TIME, BEAT-TO-BEAT, AMBULATORY BLOOD PRESSURE MONITORING.

According to an aspect of the invention, there is provided an ambulatory system for determining a cardiac parameter at a fixed location within the cardiovascular system of a subject. The system comprises a wearable sensor including an ultrasound transducer. The wearable sensor can contact the skin of the subject and be positioned proximate to the fixed location. The system comprises a data collection module that is in communication with the ultrasound transducer. The ultrasound transducer is configured to detect a pressure wave passing through the fixed location. The data collection module is configured to collect data relating to the pressure wave passing through the fixed location, analyse the pressure wave, and determine at least one cardiac parameter based on the analysis.

METHOD FOR DETERMINING HEMODYNAMIC STATE

A method for determining the hemodynamic state of a subject. The method comprises (a) determining the cardiac power index (Cpi) and systemic vascular resistance index (SVRi) values of a plurality of patients who have been diagnosed as having a specified hemodynamic state; (b) determining the range of Cpi and SVRi paired values corresponding to each of the hemodynamic states; (c) determining the Cpi and SVRi paired value of the subject; (d) comparing the Cpi and SVRi paired value of the subject to the ranges of Cpi and SVRi paired values determined in step (b); and (e) determining the range of Cpi and SVRi paired values which is most similar to the Cpi and SVRi paired value of the subject. The hemodynamic state which corresponds to the range indicates the hemodynamic state of the subject.

NON-INVASIVE, REAL-TIME, BEAT-TO-BEAT, AMBULATORY BLOOD PRESSURE MONITORING.

According to an aspect of the invention, there is provided an ambulatory system for determining a cardiac parameter at a fixed location within the cardiovascular system of a subject. The system comprises a wearable sensor including an ultrasound transducer. The wearable sensor can contact the skin of the subject and be positioned proximate to the fixed location. The system comprises a data collection module that is in communication with the ultrasound transducer. The ultrasound transducer is configured to detect a pressure wave passing through the fixed location. The data collection module is configured to collect data relating to the pressure wave passing through the fixed location, analyse the pressure wave, and determine at least one cardiac parameter based on the analysis.

ESTIMATING CENTRAL BLOOD PRESSURE

A device is for estimating the central blood pressure of a subject. The device comprises a sensor patch comprising an array of sensors configured to measure an indication of the blood pressure of a peripheral blood vessel and perform ultrasound imaging of the peripheral blood vessel. The device also comprises a processor configured to obtain a peripheral pressure signal comprising a pressure waveform from the indication of the blood pressure from the sensor patch and derive an image of the peripheral blood vessel from the signals received from the sensor patch. A vessel diameter is determined from the image of the peripheral blood vessel over time comprising a vessel diameter waveform and an estimate of the central blood pressure of the subject is derived from the pressure waveform and/or the vessel diameter waveform.

Noninvasive Systems for Blood Pressure Measurement in Arteries

Hardware and software methodology are described for a non-invasive approach to blood pressure measurement in pulmonary artery and systemic arteries by using wall displacement and blood velocity that are measured using ultrasound, microwave techniques and/or other radiofrequency (RF) techniques.

Systems and methods for identifying anatomically relevant blood flow characteristics in a patient

Systems and methods are disclosed for identifying anatomically relevant blood flow characteristics in a patient. One method includes: receiving, in an electronic storage medium, a patient-specific representation of at least a portion of vasculature of the patient having a lesion at one or more points; receiving values for one or more metrics of interest associated with one or more locations in the vasculature of the patient; receiving one or more observed lumen measurements of the vasculature of the patient; determining the location of a diseased region in the vasculature of the patient using the received values for the one or more metrics of interest, wherein the determination of the location includes predicting or receiving one or more healthy lumen measurements of the vasculature of the patient; determining the extent of the diseased region; and generating a visualization of at least the diseased region.

Pulmonary artery pressure change monitor

The present disclosure describes systems, methods, and devices to infer changes in pulmonary artery pressure in a subject using Doppler radar. A portable, non-invasive device for non-invasively measuring right ventricular cardiac motion that can be used in a subject's home can infer pulmonary artery pressure changes to increase patient compliance and mitigate the likelihood of heart decompensation. A mobile pulmonary artery pressure monitor can be especially useful to patients with congestive heart failure who are elderly, incapacitated, or do not have easy access to a clinic, doctor's office, or hospital.

Non-invasive blood pressure measurement using pulse wave velocity

A method and apparatus to non-invasively measure instantaneous blood pressure using pulse wave velocity are disclosed. A measurement component is affixed to a patient proximate to a blood vessel. One or more sensors, such as an ultrasound sensor, is included in the measurement component. The measurement component substantially simultaneously measures the pulse wave velocity of the vessel and the instantaneous blood velocity within the vessel. The measurement component computes the instantaneous blood pressure of the vessel using, for example, the water hammer equation. The one or more sensors may be contained in a disposable patch or collocated with another sensor, such as a patient-monitor sensor, or the like.

СПОСОБ ОПРЕДЕЛЕНИЯ СРЕДНЕГО ПЕРЕПАДА ДАВЛЕНИЯ НА КЛАПАНЕ СЕРДЦА

Способ относится к медицине, в частности к кардиологии. Замеряют исходные перепад давлений на исследуемом клапане, ударный объем сердца и время прохождения крови через исследуемый клапан в состоянии покоя. Производят исследование во время возрастающей физической нагрузки. Фиксируют значения ударного объема сердца и времени прохождения крови через клапан на различных уровнях нагрузки. Перепад давлений вычисляют по оригинальной математической формуле. Способ позволяет оценить перепад давлений на клапанах сердца во время физической нагрузки, что традиционным доплерэхокардиографическим методом определить невозможно. 2 ил., 4 табл.

СПОСОБ ОЦЕНКИ ФУНКЦИОНАЛЬНОГО СОСТОЯНИЯ КОАРКТАЦИИ АОРТЫ

Изобретение относится к медицине, а именно к ультразвуковой диагностике, и предназначено для оценки функционального состояния аорты. Выполняют ультразвуковое триплексное В-сканирование в режимах цветового допплеровского картирования и непрерывно-волновой допплерографии до и после приема 10 мг нифедипина. Измеряют градиент давления на нисходящем отделе аорты. При уменьшении градиента давления на нисходящей аорте на 10 мм рт.ст. и более от исходного показателя диагностируют выраженную дилатацию, при уменьшении градиента давления на 4-9,9 мм рт.ст. от исходного показателя диагностируют умеренную дилатацию и при снижении не более чем на 3,9 мм рт.ст. - отсутствие дилатации стенотического участка аорты. Способ позволяет оценить состояние функционального сосудистого резерва стенозированнного участка при коарктации аорты. 1 табл., 8 ил.

Способ прогнозирования риска развития III функционального класса хронической сердечной недостаточности у пациентов с желудочковыми тахиаритмиями и имплантированным кардиовертером-дефибриллятором

Изобретение относится к медицине, а именно к кардиологии, и может быть использовано в профилактике и лечении III функционального класса хронической сердечной недостаточности (ХСН) у пациентов с желудочковыми тахиаритмиями и имплантированным кардиовертером-дефибриллятором. Пациентам проводят трансторакальную допплеровскую эхокардиографию с оценкой систолического давления в правом желудочке, отражающего систолическое давление легочной артерии, и производят забор венозной крови для определения скорости дыхания митохондрий в среде после израсходования аденозиндифосфата. Затем рассчитывают вероятность развития III функционального класса ХСН по оригинальной формуле. Если прогностический коэффициент составляет более 0,43, то у пациента прогнозируют III функциональный класс ХСН. Способ позволяет повысить эффективность терапии ХСН у больных с желудочковыми тахиаритмиями и имплантированным кардиовертером-дефибриллятором, тем самым улучшить качество жизни пациентов. 1 ил., 2 табл., 2 пр.

СПОСОБ ОЦЕНКИ ЭФФЕКТИВНОСТИ ВНУТРИАОРТАЛЬНОЙ БАЛЛОННОЙ КОНТРПУЛЬСАЦИИ ПРИ КАРДИОГЕННОМ ШОКЕ

Изобретение относится к области медицины, в частности к анестезиологии-реаниматологии, кардиохирургии и кардиологии. Проводят оценку показателей центральной гемодинамики и анализ данных эхокардиографии. При этом решение о прекращении вспомогательного кровообращения принимают при отсутствии отрицательной динамики сердечного индекса более 2,2 л/мин/м, давлении заклинивания легочной артерии 16 mmHg по данным эхокадиографии. По данным флоуметрии - коэффициент вариации 4,5-6,5%, показатель шунтирования - 0,7-1,2, резерв кровотока 1,5-3%. Способ позволяет мониторировать показатели микрогемодинамики, тем самым повысить эффективность вспомогательного кровообращения. 2 пр., 1 табл.

СПОСОБ ДИАГНОСТИКИ ВЕНОЗНОГО ДАВЛЕНИЯ

Изобретение относится к медицине, а именно к кардиологии, функциональной диагностике. Сущность: проводят эхографию, измеряют диаметр просвета нижней полой вены от ее впадения в правое предсердие до III поясничного позвонка в положении больного лежа с приподнятым плечевым поясом под углом 35-40o на высоте глубокого вдоха; определенному значению диаметра нижней полой вены соответствует определенное значение венозного давления.

СПОСОБ МОДЕЛИРОВАНИЯ ВАРИКОЗНОЙ БОЛЕЗНИ ВЕН НИЖНИХ КОНЕЧНОСТЕЙ У СОБАК

Изобретение относится к экспериментальной медицине, а именно к хирургии, флебологии. Проводят оперативное вмешательство из одного доступа без использования жгута с помощью разреза в проекции бедренной вены длиной до 2 см. Уменьшают просвет бедренной вены на 1/2 путем ее лигирования на металлическом протекторе в виде L-изогнутой спицы, диаметр которой выбирают в зависимости от исходного диаметра вены, измеренного до операции с помощью ультразвукового аппарата. Вводят внутримышечно 0,09 мг/кг 2% раствора гексэстрола и 0,1 мл/кг 1% раствора прогестерона в течение 8 дней, которые начинают вводить за сутки до лигирования вены. Способ позволяет создать простую в исполнении и менее затратную модель варикозной болезни у собак с появлением расширения и извитости подкожных вен с венозным рефлюксом по медиальной подкожной вене для изучения венозной гемодинамики нижних конечностей в условиях флебогипертензии. 1 з.п. ф-лы, 5 ил., 2 пр.

СПОСОБ ДИАГНОСТИКИ ПАТОЛОГИИ КРОВОТОКА В ПОЛОВОМ ЧЛЕНЕ У БОЛЬНЫХ С ВОЗНИКАЮЩИМИ В ФУНКЦИОНАЛЬНОМ СОСТОЯНИИ АНГИОСПАЗМАМИ СОСУДОВ ТАЗА И ПОЛОВОГО ЧЛЕНА

Способ может быть использован в области медицины, а именно в андрологии. В состоянии покоя полового члена проводят его ультразвуковую доплерографию. Определяют показатели кровотока, линейную скорость кровотока в систолу и диастолу, их отношение, среднюю линейную скорость кровотока, индексы резистентности и пульсационности. Вызывают искусственную эрекцию полового члена с помощью локально-отрицательного давления (ЛОД) посредством вакуумно-сжимающего устройства с зажимным кольцом и при достижении максимума эрекции устраняют ЛОД. Перемещают зажимное кольцо на основание полового члена. Снова проводят ультразвуковую доплерографию. Определяют те же показатели и прирост кровотока как процентную разницу изменения линейной скорости кровотока и при приросте кровотока, меньшем чем на 50%, делают вывод о возникновении в функциональном состоянии ангиоспазмов. В этом случае выполняют функциональную пробу с нитроглицерином, давая больному нитроглицерин под язык. Снова проводят ультразвуковую доплерографию ...

СПОСОБ ДИАГНОСТИКИ НАЧАЛЬНОЙ СТАДИИ ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Способ диагностики хронической сердечной недостаточности путем определения диастолической функции левого желудочка, отличающийся тем, что определяют конечно-диастолическое давление левого желудочка (КДД) с использованием значений среднего давления в легочной артерии по формуле: КДД = Ср. давление в ЛА-В+2, где B - разница между средним давлением в легочной артерии и средним давлением в левом предсердии, при этом B рассчитывают по известной формуле: В = предположительное общее легочное сопротивление *МОК/80; 2 - обычная разница между средним давлением в левом предсердии и конечно - диастолическим давлением в левом желудочке в мм рт. ст.

Improvements relating to Blood Pressure Measuring Apparatus

... 1,190,074. Measuring blood pressure. SOUTHWEST RESEARCH INSTITUTE. 6 April, 1967 [19 April, 1966], No. 15950/67. Heading A5K. [Also in Division H4] Blood pressure measuring apparatus comprises a conventional inflatable cuff 14 coupled to an indicator 33 of the pressure therein and an ultrasonic transducer 16 which in use is located against the body beneath the cuff, the transducer having a central portion (18) for directing ultrasonic energy to the artery under test and an outer portion (22) for receiving reflected ultrasonic energy and connected with means 31, 32, 33 for producing output signals in response to changes of frequency of the transmitted energy on reflection and indicative of arterial wall motion as the artery opens and closes under the occluding pressure of the cuff. In use as the pressure in the cuff falls to and below systolic pressure the antery will open for longer periods in each progressive heart cycle until at cuff pressures below diastolic pressure it remains open.

Ultrasonic inspection equipment for biological investigations

System for the acoustic announcement of a periodic movement by means of ultrasonic power

PROCEDURE AND DEVICE FOR THE MEASUREMENT OF THE INTRAKRANIELLEN PRESSURE

Device for measuring blood pressure

No abstract ...

BLOOD PRESSURE APPARATUS

ACOUSTIC WAVE DEVICES

BLOOD PRESSURE APPARATUS

Multi-modal ultrasound probe for calibration-free cuff-less evaluation of blood pressure

The embodiments herein provide a system for calibration-free cuff-less evaluation of blood pressure. The system includes an ultrasound-based arterial compliance probes and a controller unit connected to the said probe. The ultrasound transducers are configured to measure the change in arterial dimensions, pulse wave velocity, and other character traits of an arterial segment over continuous cardiac cycle, which is then used to evaluate blood pressure parameters without any calibration procedure using dedicated mathematical models. The pressure sensor/force sensor/bio-potential transducers/accelerometric sensors are configured to measure a pressure acting on a skin surface at a measurement site, an internal arterial transmural pressure level, an applied pressure or a hold-down pressure on the skin surface or an arterial site, biopotential and/or plethysmograph signal, arterial vibrations acting on the measurement site as a function of the arterial pressure and the mechanical characteristics ...

Exciter-detector unit for measuring physiological parameters

Ultrasound guided opening of blood-brain barrier

A system for delivering drugs or other molecules to the brain comprises an ultrasound imaging transducer configured to image structures such as the circle of Willis within a patient's head by way of a low attenuation acoustic window. The system includes a processor configured to register the ultrasound images to previously obtained images which also include the structures. The system includes ultrasound transducer elements operable to deliver ultrasound energy to a target region to cause the blood brain barrier to open. The system may include a drug delivery system that may be operated to deliver a drug to the patient in coordination with opening the blood brain barrier. Coordinates of the target region relative to the ultrasound imaging transducer are determined using registration information.

APPARATUS FOR THE AUTOMATIC MEASUREMENT OF THE ARTERIAL PRESSURE OF TIENT

BLOOD VESSEL CANNULATION DEVICE

Способ диагностики дисфункции эндотелия при дисциркуляторной энцефалопатии

Способ диагностики дисфункции эндотелия при дисциркуляторной энцефалопатии, заключающийся в том, что у пациента измеряют систолическое давление, допплерографически на тыльной поверхности основания первого пальца кисти определяют исходное значение максимальной систолической линейной скорости кровотока, затем на плечо пациента накладывают манжетку манометра, создают в течение 1 мин компрессию, на 30 мм рт. ст. превышающую систолическое давление, осуществляют декомпрессию, через 2 мин снова определяют максимальную систолическую линейную скорость кровотока и диагностируют дисфункцию эндотелия при дисциркуляторной энцефалопатии при увеличении максимальной систолической линейной скорости кровотока после компрессии/декомпрессии менее чем на 36 % от ее исходного значения.

method for determination if expression degree of left ventricle outlet tract stenosis at hypertrophic obstructive cardiomyopathy by mitral insufficiency spectrum

СПОСОБ ПРОГНОЗИРОВАНИЯ РАЗВИТИЯ ГИПЕРТОНИЧЕСКОЙ БОЛЕЗНИ

Изобретение относится к медицине, а именно к кардиологии, и может быть использовано для прогнозирования гипертонической болезни у здоровых лиц. Способ включает измерение систолического артериального давления и частоты сердечных сокращений до и после психоэмоциональной нагрузки для выявления влияния прироста данных показателей.

СПОСОБ ДИАГНОСТИКИ ЗАДНЕЙ ИШЕМИЧЕСКОЙ ОПТИКОПАТИИ

Способ диагностики задней ишемической оптикопатии включает измерение линейной скорости кровотока в конечной ветви глазничной артерии с двух сторон. Изобретение относится к офтальмологии.

СПОСОБ ДИАГНОСТИКИ ЛАБИЛЬНОЙ АРТЕРИАЛЬНОЙ ГИПЕРТЕНЗИИ У ПОДРОСТКОВ И ЛИЦ МОЛОДОГО ВОЗРАСТА

Изобретение относится к медицине, а именно к кардиологии и может быть использовано для диагностики лабильной артериальной гипертензии у подростков и лиц молодого возраста. Способ диагностики лабильной артериальной гипертензии у подростков и лиц молодого возраста включает исследование эхокардиографических показателей гемодинамики в покое и после дозированной физической нагрузки, а также определение в плазме крови концентрации нитрат-ионов, уровня кортизола и альдостерона. При увеличении минутного объема кровообращения и систолического индекса после дозированной физической нагрузки более чем на 50%, концентрации нитрат-ионов - 2,54 моль/л и выше, уровне кортизола - 454,8 нмоль/мл и выше, уровне альдостерона - 76,0 пг/мл и выше диагностируют лабильную артериальную гипертензию. Предлагаемый способ позволяет с высокой степенью точности в ранние сроки диагностировать лабильную артериальную гипертензию и соответственно своевременно начать комплексную терапию. Кроме того, способ доступен, прост ...

СПОСОБ ОЦЕНКИ ТЯЖЕСТИ ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ У ДЕТЕЙ С ХРОНИЧЕСКОЙ ПОЧЕЧНОЙ НЕДОСТАТОЧНОСТЬЮ

Изобретение относится к медицине, в частности к клинической нефрологии и может найти использование для определения тяжести хронической сердечной недостаточности у детей с хронической почечной недостаточностью. Способ оценки тяжести хронической сердечной недостаточности у детей с хронической почечной недостаточностью, включающий клиническое обследование, при этом дополнительно измеряют артериальное давление и проводят эхокардиографическое исследование, учитывают следующие показатели - наличие артериальной гипертензии, толщину межжелудочковой перегородки, толщину задней стенки левого желудочка, сократительную функцию миокарда левого желудочка, определяют массу миокарда левого желудочка по формуле ММЛЖ - 1,04 х (/МЖП+ЗСЛЖ+КДР/3 - КДР3) - 13,6 где МЖП - толщина межжелудочковой перегородки, ЗСЛЖ - толщина задней стенки левого желудочка, КДР - конечный диастолический размер и при наличии артериальной гипертензии до 140/100 мм рт ст, увеличении массы миокарда левого желудочка до 124,6грамм, толщины ...

СПОСОБ ОПРЕДЕЛЕНИЯ БАЛАНСА ВАЗОКОНСТРИКТОРНЫХ И ВАЗОДИЛАТАТОРНЫХ НЕЙРОГУМОРАЛЬНЫХ СИСТЕМ ПРИ ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Полезная модель относится к медицине, а именно терапии, и может быть использована в определении баланса вазоконстрикторных и вазодилататорных нейрогуморальных систем при хронической сердечной недостаточности.

СПОСОБ ДИАГНОСТИКИ МЕТАБОЛИЧЕСКОГО СИНДРОМА

Способ включает комплекс общеклинических методов обследования больных с метаболическим синдромом (определение уровня холестерина, триглицеридов, β-липопротеидов в периферической крови, сахара крови (гликемический профиль), лептина, кортизола, анализ мочи, физикальное обследование, измерение АД, определение индекса массы тела, измерение окружности талии). Дополнительно определяют уровень тестостерона в сыворотке периферийной крови.

СПОСОБ ОЦЕНКИ УРОВНЯ ВАЗОПРЕССИНА ПРИ ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Полезная модель относится к медицине, а именно терапии, и может быть использована в диагностике уровня вазопрессина при хронической сердечной недостаточности.

СПОСОБ ДИФФЕРЕНЦИАЛЬНОЙ ДИАГНОСТИКИ ПЕРВИЧНОГО И ВТОРИЧНОГО ГИПЕРАЛЬДОСТЕРОНИЗМА ПРИ ИШЕМИЧЕСКОЙ БОЛЕЗНИ СЕРДЦА И ХРОНИЧЕСКОЙ СЕРДЕЧНОЙ НЕДОСТАТОЧНОСТИ

Способ дифференциальной диагностики первичного и вторичного гиперальдостеронизма при ишемической болезни сердца и хронической сердечной недостаточности включает определение артериального давления до и через 2 часа после приема 25 мг каптоприла. Дополнительно в другой день назначают ингибитор фосфодиэстеразы агапурин.

СПОСІБ ДІАГНОСТИКИ ГЛЮКОКОРТИКОЇДНОЇ ФУНКЦІЇ КОРИ НАДНИРКОВИХ ЗАЛОЗ У ХВОРИХ НА ХРОНІЧНУ СЕРЦЕВУ НЕДОСТАТНІСТЬ

Спосіб діагностики глюкокортикоїдної функції кори надниркових залоз у хворих на хронічну серцеву недостатність включає введення -адреноблокатора та визначення артеріального тиску (AT) до і після введення. Як -адреноблокатор використовують празозин та додатково визначають число серцевих скорочень (ЧСС). При відсутності істотних змін ЧСС і AT після прийому празозину вважають, що глюкокортикоїдна функція кори надниркових залоз підвищена, а при частішанні серцевих скорочень, різкому зниженні AT - глюкокортикоїдну функцію вважають недостатньою.

СПОСІБ СОНОГРАФІЇ ПЕЧІНКИ НОВОНАРОДЖЕНИХ ТЕЛЯТ

Спосіб сонографії печінки у новонароджених телят, при якому прижиттєве ультразвукове сканування печінки у новонароджених телят проводять в правих супраабдомінальній і супракостальній позиціях розташування датчика приладу ультразвукової дії "Scanner 100S" і визначають динамічність ехоморфології структур печінки.

Dispositif de mesure de la pression sanguine dans une artere superficielle

Dispositif de mesure de la pression sanguine dans une artere superficielle, comportant une tete de mesure 6, propre a venir appuyer sur la peau 1 du patient pour comprimer l'artere superficielle 5 en provoquant, pour une pression donnee, l'arret de la circulation sanguine dans cette artere et, montee dans la tete, une sonde DOPPLER 9, fournissant une onde ultra-sonore, reflechie par le sang en circulation et dont l'extinction determine le moment ou se produit l'arret de cette circulation. Selon l'invention, ce dispositif se caracterise en ce que la tete de mesure est solidaire d'un piston 14 monte coulissant dans un corps fixe 15, delimitant une chambre etanche 17 remplie d'air comprime dont le volume est variable selon la position de la tete par rapport au corps, la pression de l'air contenu dans la chambre etant mesuree par un ensemble de controle associe 2 donnant, apres etalonnage, la valeur de la pression arterielle a tout instant, et en particulier a l'arret de la circulation sanguine ...

Ultrasonic diagnostic apparatus and method thereof

The present disclosure relates to an ultrasonic diagnostic apparatus for providing a combination of an ultrasound image and a color flow image. The ultrasonic diagnostic apparatus detects a color index of each of pixels in a color flow image and provides a contour image composed of contour lines. Here, each of the contour lines is formed by grouping and connecting pixels having the same color index based on the detected color indexes of the respective pixels and formed for at least one color index level. A diagnosis method of the apparatus is also disclosed.

Transcranial Doppler Apparatus

The disclosure is directed to a transcranial Doppler probe. The transcranial Doppler probe includes a spherical bearing, a piezoelectric transducer pivotally attached to the spherical bearing, and first and second rods coupled to the piezoelectric transducer. The first rod is configured to pivot the piezoelectric transducer around a first pivot axis and the second rod is configured to pivot the piezoelectric transducer around a second pivot axis.

Method and System For Patient-Specific Modeling of Blood Flow

Embodiments include a system for planning treatment for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of an anatomical structure of the patient, create a three-dimensional model representing at least a portion of the anatomical structure of the patient based on the patient-specific data, and determine a first fractional flow reserve within the anatomical structure of the patient based on the three-dimensional model and information regarding a physiological condition of the patient. The at least one computer system may be further configured to receive input from a user regarding a plan of treatment, modify the physiological condition of the patient based on the received input, and determine a second fractional flow reserve within the anatomical structure of the patient based on the modified physiological condition of the patient.

Method and system for non-invasive monitoring of patient parameters

A method for continuous non-invasive monitoring of multiple arterial parameters of a patient is provided. The method includes continuously acquiring ultrasound data via an ultrasound transducer attached to the patient for detecting a blood vessel using color flow processing within a monitoring scan plane. Further, the method includes processing the continuously acquired ultrasound data to generate continuous quantitative waveforms based on an estimated cross-sectional area of the blood vessel and an estimated volumetric flow rate of blood through the vessel and displaying the generated continuous quantitative waveforms for monitoring the arterial parameters of the patient in real-time.

Method and apparatus for ultrasonic detection and imaging of hemodynamic information, particularly venous blood flow information

A method for ultrasonic detection and imaging of hemodynamic information includes the steps of transmitting ultrasonic pulses into a body, which are generated by an array of electro-acoustic transducers arranged in a predetermined order and design; receiving reflected pulses with an array of receiving electro-acoustic transducers, which generate receive signals upon stimulation of the reflected pulses, the succession of pulses transmitted to or received from the body being focused along one or more scan lines; generating a Doppler frequency shift signal resulting from the reflection of pulses transmitted by a blood flow into a vessel intersected by the scan line, in a point and along the scan line, or along a direction of propagation of a pulse; determining the direction of blood flow velocity from the average frequency value of Doppler shift frequencies; and displaying the direction of blood flow velocity by graphical and/or chromatic representation differentiating opposite directions.

Method for providing mechanical index map and/or pressure map based on depth value and diagnostic ultrasound system using the method

A diagnostic ultrasound system may visualize and display a mechanical index (MI) as a map. The diagnostic ultrasound system may include a calculating unit to calculate an MI at a depth value on an ultrasonic direction axis from an ultrasonic output unit of an ultrasonic transducer, a visualizing unit to visualize a relationship between the calculated MI and the corresponding depth value in the form of a graph to generate an MI map, and a display unit to display the MI map.

Method for Ultrasound Color Doppler Imaging

Methods for color Doppler imaging in an ultrasound imaging system are disclosed herein. Ultrasound radio frequency RF data is demodulated using a nested processing loop including an inner loop and an outer loop. A plurality of Wall filter coefficients are fetched from ultrasound imaging system memory in a single memory access cycle. The plurality Wall filter coefficients are applied to a plurality of complex ultrasound data values in a single execution cycle. The Wall filtered ultrasound data are provided to a flow estimator.

Arrangement and method for quantitatively determining the blood flow within blood vessels

An arrangement quantitatively determines the blood flow within blood vessels through which blood flows in a volume of a tissue defining a surface. Three-dimensional first image data of a first volume portion of the volume is detected and optical second image data is detected continuously in time of a first surface portion of the surface. A calibrating unit of the arrangement calibrates the relative value of the flow speed and/or the volumetric flow of the blood flowing through the blood vessels disposed directly below the first surface portion based on the absolute values of the flow speed and/or of the volumetric flow of the blood. An output unit outputs the absolute values of the flow speed and/or the volumetric flow of the blood flowing through the blood vessels arranged directly below the first surface portion.

Apparatus and methods for monitoring physiological data during environmental interference

Apparatus and methods for attenuating environmental interference are described. A wearable monitoring apparatus includes a housing configured to be attached to the body of a subject and a sensor module that includes an energy emitter that directs energy at a target region of the subject, a detector that detects an energy response signal—or physiological condition—from the subject, a filter that removes time-varying environmental interference from the energy response signal, and at least one processor that controls operations of the energy emitter, detector, and filter.

Medical doppler ultrasound system for locating and tracking blood flow

Systems and methods for processing echo signals in a Doppler ultrasound system from a region of interest. An ultrasound beam is electronically steered to deliver ultrasound to and receive echo signals from a plurality of sample locations in the region of interest. The echo signals for each sample location are processed to extract Doppler shift signals and Doppler shift data representing the Doppler shift signals are generated. The Doppler shift data accumulated for the sample locations can be used to detect the presence of blood flow in the region of interest, and identify the location in the region of interest at which the presence of blood flow is detected. The blood flow can be tracked by updating the location of the detected blood flow in the region of interest. The blood flow can be further monitored by combining the locating and tracking functionality with an m-mode ultrasound image.

Contrast-enhanced ultrasound assessment of liver blood flow for monitoring liver therapy

A method for assessing a liver includes acquiring image information including contrast-enhanced ultrasound images of the liver. A location of the main hepatic artery (MHA) and a location of the main portal vein (MPV) of the liver are identified in at least one of the contrast-enhanced ultrasound images of the liver. Time-intensity information corresponding to perfusion of a contrast agent in the MHA and the MPV is obtained. A biomarker index value (BW) which is a function of the time-intensity information corresponding to the perfusion of contrast agent in the MHA and the time-intensity information corresponding to the perfusion of contrast agent in the MPV is determined.

Method and system for patient-specific modeling of blood flow

Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

Method and system for patient-specific modeling of blood flow

Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model.

SYSTEM AND METHOD FOR MANAGING A PATIENT

A system for managing a patient is disclosed and can include a patient interface adapted to obtain ultrasound information about the patient, a provider interface adapted to facilitate communication between the system and a provider, and a controller in communication with the patient interface and the provider interface, the controller including a clinical management module adapted to receive the ultrasound information and to recommend a clinical management strategy based upon the ultrasound information. A method of presenting a clinical management strategy is also described including obtaining information regarding a condition of a patient, developing a determinant reflecting the condition, and presenting a user with a clinical management strategy on an output device. 1. A system for hemodynamically managing a patient , the system comprising:a) a patient interface configured to capture first cardiac image data regarding the patient;b) a database comprising second cardiac image data stored in the database; andc) a controller in communication with the database and patient interface, the controller configured to compare the first cardiac image data to the second cardiac image data, the controller categorizing the first cardiac image data according to a category of the second cardiac image data the first cardiac image data most closely resembles.2. The system of claim 1 , wherein the controller identifies an intervening hemodynamic treatment measure correlated with the category of the second cardiac image data the first cardiac image data most closely resembles.3. The system of claim 2 , further comprising a provider interface configured to display the intervening hemodynamic treatment measure.4. The system of claim 2 , wherein the intervening hemodynamic treatment measure is correlated in the database with the category of the second cardiac image data the first cardiac image data most closely resembles.5. The system of claim 2 , wherein the intervening hemodynamic ...

SYSTEM AND METHOD FOR MANAGING A PATIENT

A system for managing a patient is disclosed and can include a patient interface adapted to obtain ultrasound information about the patient, a provider interface adapted to facilitate communication between the system and a provider, and a controller in communication with the patient interface and the provider interface, the controller including a clinical management module adapted to receive the ultrasound information and to recommend a clinical management strategy based upon the ultrasound information. A method of presenting a clinical management strategy is also described including obtaining information regarding a condition of a patient, developing a determinant reflecting the condition, and presenting a user with a clinical management strategy on an output device. 1. A system for hemodynamically managing a patient , the system comprising:a) a patient interface configured to obtain cardiac ultrasound information regarding the patient;b) a database comprising image data categorized according to categories of hemodynamic function; andc) a controller in communication with the patient interface and database and configured to compare the cardiac ultrasound information to the image data to identify a category of hemodynamic function the cardiac ultrasound information most closely resembles.2. The system of claim 1 , further comprising image recognition software the system uses to analyze the cardiac ultrasound information to compare the cardiac ultrasound information to the image data.3. The system of claim 1 , wherein the image data comprises video images.4. The system of claim 3 , wherein the video images comprise a video loop.5. The system of claim 1 , wherein the image data comprises a still video image.6. The system of claim 1 , wherein the system is configured to periodically obtain the cardiac ultrasound information.7. The system of claim 1 , wherein the system is configured to continuously obtain the cardiac ultrasound information.8. The system of claim 1 , ...

ULTRASONIC IMAGING DEVICE

Disclosed is an ultrasonic imaging device having an improved signal-to-noise ratio. After A/D conversion, by performing filtering between channels or two-dimensional filtering between channels and along the time axis, reduction in spatial resolution is suppressed as much as possible to thereby improve the signal-to-noise ratio. 1. An ultrasonic imaging device comprising:an array element;a transmitter that transmits ultrasonic waves to a target through the array element;a receiver that delays and sums a reception wave signal received by the array element from the target;a display that displays a cross-sectional image of the target from the reception wave signal output from the receiver; anda controller that controls the transmitter and the receiver, whereinthe receiver includes an inter-channel filter that selectively suppresses electric noise, a receiving beamformer that selectively receives a beam, and an envelope detection unit, and the inter-channel filter performs a filtering process in which a signal and noise contained in an echo signal from the target are separated from each other using continuity between channels to remove the noise.2. The ultrasonic imaging device according to claim 1 , whereina process of the inter-channel filter is performed after analog to digital conversion and before an adding process between channels.3. The ultrasonic imaging device according to claim 1 , whereinthe inter-channel filter is a median filter.4. The ultrasonic imaging device according to claim 1 , whereinthe inter-channel filter is a two-dimensional median filter between channels and in a temporal axis.5. The ultrasonic imaging device according to claim 1 , wherein:the inter-channel filter includes means that sets a data point range around each point of the echo data, and means that obtains a function for determining a weighting function based on a difference between the signal strength of each data and the strength of each data point in the data point range; the function ...

ULTRASONIC DIAGNOSTIC APPARATUS, ULTRASONIC IMAGE DISPLAY APPARATUS, AND ULTRASONIC IMAGE DISPLAY METHOD

According to one embodiment, an internal storage unit stores auxiliary diagnostic indication concerning each of examination items in association with a display position of the auxiliary diagnostic indication in a display area where an ultrasonic image is displayed. An image generation unit generates an ultrasonic image concerning an examination item of a scan target based on an echo signal from an ultrasonic probe. A monitor has a display area. A display control unit controls the monitor so as to display specific auxiliary diagnostic indication, of auxiliary diagnostic indication stored in the storage unit, which is associated with an examination item of the scan target, at a specific display position associated with the specific auxiliary diagnostic indication. 1. An ultrasonic diagnostic apparatus comprising:a storage unit configured to store auxiliary diagnostic indication concerning each of examination items in association with a display position of the auxiliary diagnostic indication in a display area where an ultrasonic image is displayed;a generation unit configured to generate an ultrasonic image concerning a scan target based on an echo signal from an ultrasonic probe;a display unit configured to have a display area for an ultrasonic image; anda control unit configured to control the display unit so as to display specific auxiliary diagnostic indication, of auxiliary diagnostic indication stored in the storage unit, which is associated with an examination item of the scan target at a specific display position associated with the specific auxiliary diagnostic indication.2. The ultrasonic diagnostic apparatus of claim 1 , wherein the control unit displays the specific auxiliary diagnostic indication at the specific display position before display of the generated ultrasonic image.3. The ultrasonic diagnostic apparatus of claim 1 , wherein the display unit displays the generated ultrasonic image in the display area in real time claim 1 , andthe control unit ...

Ultrasonic diagnostic apparatus

An ultrasonic diagnostic apparatus is provided. The ultrasonic diagnostic apparatus includes a B-flow data generator configured to generate B-flow data based on echo signals obtained by performing transmission/reception of ultrasound on a subject given vibrations, and a displayer configured to display a B-flow image based on the B-flow data.

ULTRASOUND CATHETERS FOR SENSING BLOOD FLOW

Disclosed herein are ultrasound devices for sensing blood flow. More particularly, a medical catheter is disclosed to detect the presence of blood vessels. 1. An ultrasound catheter for detecting blood flow having a proximal section , a distal section and a distal end , said catheter comprising:an ultrasonic transducer positioned in said distal section, said ultrasonic transducer adapted to emit and receive ultrasonic signals; anda tip assembly located at and forming said distal end of said catheter, said tip assembly comprising an acoustically-transmitting material.2. The catheter of wherein said acoustically-transmitting material is ceramic.3. The catheter of wherein further comprising an electrically-conductive coating partially covering said acoustically-transmitting material.4. The catheter of wherein said acoustically-transmitting material is adjacent to a distal surface of said ultrasonic transducer.5. The catheter of wherein said acoustically-transmitting material is adhered to the distal surface of said ultrasonic transducer.6. The catheter of comprising a flexible tubular member coaxially surrounding said ultrasonic transducer.7. The catheter of wherein said tubular member extends partially over said acoustically-transmitting material such that a distal edge of said tubular member mates with a proximal edge of said electrode coating.8. The catheter of wherein said ultrasonic transducer is a piezoelectric transducer.9. The catheter of wherein said acoustically-transmitting material is fused to the distal surface of said ultrasonic transducer.10. The catheter of further comprising an electrode-conducting element.11. The catheter of wherein said acoustically-transmitting material has an axial length less than 0.9 mm.12. The catheter of wherein said tip assembly has a flat end.13. The catheter of wherein said distal section has a constant outer diameter.14. The catheter of wherein said ultrasonic transducer comprises a conductive coating disposed over at least ...

METHOD FOR DEPLOYING A DEVICE TO A DISTAL LOCATION ACROSS A DISEASED VESSEL

Configurations are described for assisting in the execution of a percutaneous procedure while protecting the vascular pathway to the operational theater, which may comprise diseased tissue. A railed sheath may be utilized which is controllably expandable and collapsible, and may comprise two or more elongate rail structures configured to assist in the distribution of loads to associated diseased tissue structures, while also contributing to the deployment of percutaneous tools by maintaining alignment of such tools with the railed catheter and associated anatomy. 1. A method for deploying a device to a distal location across a diseased vessel , comprising: i) in the collapsed configuration, the sheath is configured to be advanced across at least a portion of the diseased vessel to a position adjacent the distal location without substantial size interference between the first cross sectional outer diameter of the sheath and an inner diameter profile of a lumen of the diseased vessel; and', 'ii) upon positioning the collapsed configuration to) the desired position relative to the distal location, the sheath may be expanded to the expanded configuration with incremental pushing of a device longitudinally through the lumen such that loads imparted upon the sheath by the device are transferred to the rails and distributed to nearby portions of the diseased vessel in a deconcentrated and nonabrasive manner;, 'a. inserting a railed expandable sheath into a diseased vessel at a point of entry, the sheath defining a lumen therethrough and comprising two or more longitudinal rail structures coupled to a sheetlike member, the sheath having a collapsed configuration, wherein the sheath has a first cross sectional outer diameter defines a first lumen inner diameter, and an expanded configuration, wherein the sheath has a second cross sectional outer diameter and second lumen inner diameter, such that'}b. inserting the device through the lumen to transform the sheath into the ...

ULTRASOUND DIAGNOSTIC APPARATUS AND IMAGE PROCESSING METHOD

An ultrasound diagnostic apparatus according to an embodiment includes a detector, a determination unit, a retention controller, and a display controller. The detector is configured to detect a peak flow velocity of blood flow velocities acquired from Doppler waveforms collected in a time-serial manner or a peak value of average flow velocities of the blood flow velocities as a representative flow velocity for each predefined period. The determination unit is configured to determine a maximum value in a predefined polarity of a plurality of representative flow velocities. The retention controller is configured to control a memory unit to retain maximum waveform information that is Doppler waveform information of Doppler waveforms collected for a period in which the maximum value was detected. The display controller is configured to control a display unit to display the maximum waveform information with Doppler waveform information having been collected by a present time point. 1. An ultrasound diagnostic apparatus comprising:a detector configured to detect a peak flow velocity of blood flow velocities acquired from Doppler waveforms collected in a time-serial manner or a peak value of average flow velocities of the blood flow velocities as a representative flow velocity for each predefined period;a determination unit configured to determine a maximum value in a predefined polarity of a plurality of representative flow velocities by comparing values of representative flow velocities sequentially output from the detector;a retention controller configured to control a predefined memory unit to retain maximum waveform information that is Doppler waveform information that is information on Doppler waveforms, the maximum waveform information being Doppler waveform information of Doppler waveforms collected for a period in which the maximum value was detected; anda display controller configured to control a predefined display unit to display the maximum waveform ...

ULTRASONIC DIAGNOSIS APPARATUS, IMAGE PROCESSING APPARATUS, AND IMAGE PROCESSING METHOD

An ultrasonic diagnosis apparatus according to an embodiment includes a processor, an image generator, a detector, and a controller. The processor is configured to acquire two-dimensional or three-dimensional blood flow information in time sequence in a scan range formed of a plurality of scan lines, from two-dimensional or three-dimensional echo data collected through ultrasound transmission/reception performed in the scan range. The image processor is configured to generate blood flow images in time sequence from the two-dimensional or three-dimensional blood flow information in time sequence in the scan range. The detector is configured to detect movement information in time sequence of speckles in a preset two-dimensional or three-dimensional region of interest, among the blood flow images in time sequence. The controller is configured to control a predetermined display to display movement information data that is data based on the movement information in time sequence. 1. An ultrasonic diagnosis apparatus comprising:a processor configured to acquire two-dimensional or three-dimensional blood flow information in time sequence in a scan range formed of a plurality of scan lines, from two-dimensional or three-dimensional echo data collected through ultrasound transmission/reception performed in the scan range;an image generator configured to generate blood flow images in time sequence from the two-dimensional or three-dimensional blood flow information in time sequence in the scan range;a detector configured to detect movement information in time sequence of speckles in a preset two-dimensional or three-dimensional region of interest, among the blood flow images in time sequence; anda controller configured to control a predetermined display to display movement information data that is data based on the movement information in time sequence.2. The ultrasonic diagnosis apparatus according to claim 1 , wherein the processor is configured to acquire the two- ...

Method for Obtaining a Three-Dimensional Velocity Measurement of a Tissue

A method for obtaining a three-dimensional velocity measurement of a tissue from an ultrasound device comprising generating a set of correlation-velocity transfer functions from a first image plane and a second image plane, each image plane characterizing the tissue, wherein the set of correlation-velocity transfer functions can be applied to situations of constant ultrasound beam profile and/or periodic flow patterns; collecting, using the ultrasound device, an ultrasound measurement image; determining a set of in-plane velocity vectors and a set of speckle correlation values mapped to the ultrasound measurement image; determining a set of out-of-plane velocity vectors, corresponding to the set of in-plane velocity vectors, by applying the set of correlation-velocity transfer functions to the set of speckle correlation values; and generating, for the ultrasound measurement image, a three-dimensional velocity measurement from the sets of in-plane and out-of-plane velocity vectors.

ULTRASOUND SYSTEM AND METHOD FOR DETECTING VECTOR INFORMATION USING TRANSMISSION DELAYS

An ultrasound system and a method of detecting vector information with transmission delays are disclosed. In one embodiment, the ultrasound system includes: an ultrasound data acquisition unit configured to set at least two focal points and form ultrasound data corresponding to the respect two focal points by considering transmission delays to the respective focal points; and a processor configured to form vector information of a target object by using the ultrasound data. 1. An ultrasound system , comprising:an ultrasound data acquisition unit configured to set at least two focal points and form ultrasound data corresponding to the respect two focal points by considering transmission delays to the respective focal points; anda processor configured to form vector information of a target object by using the ultrasound data.2. The ultrasound system of claim 1 , wherein the two focal points are set on different locations.3. The ultrasound system of claim 1 , wherein the ultrasound data acquisition unit is configured to:set transmission delays corresponding to the respective at least two focal points;form transmission pulses corresponding to the respective at least two focal points by considering the transmission delays;transmit ultrasound signals into the target object in response to the transmission pulses and receive ultrasound echoes to form receive signals;perform analog-to-digital conversion upon the receive signals to form digital signals;perform reception beam forming upon the digital signals to form receive-focused signals; andform ultrasound data corresponding to the respective at least two focal points by using the receive-focused signals.4. The ultrasound system of claim 1 , wherein the processor is configured to form the vector information corresponding to velocities and directions of the target object by using at least one transmission direction and at least one reception direction corresponding to the at least one transmission direction.5. A method of ...

BLOOD PRESSURE MEASUREMENT APPARATUS AND CONTROL METHOD FOR BLOOD PRESSURE MEASUREMENT APPARATUS

In an ultrasound blood pressure monitor blood flow speed in a measurement target blood vessel of a patient is gauged using a blood flow speed sensor section. The blood pressure of the patient is estimated using a blood pressure estimation section on the basis of results of the gauging of the blood flow speed sensor section by referencing a correlation formula which is expressed by correlation characteristics of the blood pressure and the blood flow speed of the patient which was found in a first correction process. Along with this, the correlation formula is corrected using a first correction section by rederiving the correlation formula using measurement values which are continuously input from a tonometry blood pressure monitor. The correlation characteristics are corrected using a second correction section by modifying the correlation characteristics using a measurement value which is directly input from an oscillometric blood pressure monitor or a measurement value of the oscillometric blood pressure monitor which is input in accordance with a user operation. 1. A blood pressure measurement apparatus comprising:a blood flow speed gauging section which gauges blood flow speed in a measurement target blood vessel of a patient;a blood pressure estimation section which estimates blood pressure on the basis of results of gauging of the blood flow speed gauging section by referencing correlation characteristics of the blood pressure and the blood flow speed of the patient which have been set in advance;a first input section which is connected to a first external measurement apparatus which performs blood pressure measurement using a continuous method and continuously inputs measurement values of the first external measurement apparatus;a second input section which is connected to a second external measurement apparatus which performs gauging of blood pressure using an intermittent method and inputs a measurement value of the second external measurement apparatus or ...

PROVIDING MOTION PROFILE INFORMATION OF TARGET OBJECT IN ULTRASOUND SYSTEM

There are provided embodiments for providing motion profile information corresponding to a motion of a target object by using vector Doppler. In one embodiment, by way of non-limiting example, an ultrasound system comprises: a processing unit configured to form vector information of a target object based on ultrasound data corresponding to the target object, form a Doppler mode image based on the vector information, and set a first region of interest on the Doppler mode image based on input information of a user, the processing unit being further configured to form motion profile information corresponding to the motion of the target object based on vector information corresponding to the first region of interest. 1. An ultrasound system , comprising:a processing unit configured to form vector information of a target object based on ultrasound data corresponding to the target object, form a Doppler mode image based on the vector information, and set a first region of interest on the Doppler mode image based on input information of a user, the processing unit being further configured to form motion profile information corresponding to a motion of the target object based on vector information corresponding to the first region of interest.2. The ultrasound system of claim 1 , wherein the processing unit is configured to form the vector information corresponding to a velocity and a direction of the target object in consideration of at least one transmission direction and at least one reception direction corresponding to the at least one transmission direction based on the ultrasound data.3. The ultrasound system of claim 1 , further comprising:a user input unit configured to receive the input information for setting the first region of interest on the Doppler mode image from the user.4. The ultrasound system of claim 3 , wherein the processing unit is configured to:extract vector information corresponding to the first region of interest from the vector information; ...

ULTRASONIC DIAGNOSTIC APPARATUS, MEDICAL IMAGE DIAGNOSTIC APPARATUS, AND MEDICAL IMAGE PROCESSING METHOD

According to one embodiment, an ultrasonic diagnostic apparatus comprises a data acquisition unit, an image generation unit, a calculation unit, a determination unit and a measurement unit. The data acquisition unit acquires a plurality of ultrasonic data. The image generation unit generates a plurality of ultrasonic images by using the plurality of ultrasonic data. The calculation unit calculates a feature amount for determining a shift between the two-dimensional section and a central axis of a target blood vessel. The determination unit determines an optimal image from the plurality of ultrasonic images based on the feature amount. The measurement unit measures an intima-media thickness of the target blood vessel by using the optimal image. 1. An ultrasonic diagnostic apparatus comprising:a data acquisition unit configured to acquire a plurality of ultrasonic data by repeatedly scanning a two-dimensional section including a target blood vessel with an ultrasonic wave;an image generation unit configured to generate a plurality of ultrasonic images by using the plurality of ultrasonic data;a calculation unit configured to calculate a feature amount for determining a shift between the two-dimensional section and a central axis of the target blood vessel in a running direction on the each ultrasonic image;a determination unit configured to determine an optimal image from the plurality of ultrasonic images based on the feature amount; anda measurement unit configured to measure an intima-media thickness of the target blood vessel by using the optimal image.2. The apparatus of claim 1 , wherein the data acquisition unit acquires the plurality of ultrasonic data in correspondence with a phase of a biological signal which periodically changes by performing the scan in synchronism with the biological signal claim 1 ,the image generation unit generates the plurality of ultrasonic images associated with the phase of the biological signal,the calculation unit selects a ...

PROVIDING COMPOUND IMAGE OF DOPPLER SPECTRUM IMAGES IN ULTRASOUND SYSTEM

There are provided embodiments for providing a compound image of Doppler spectrum images corresponding to at least two sample volumes. In one embodiment, by way of non-limiting example, an ultrasound system comprises: a processing unit configured to form at least two Doppler spectrum images corresponding to at least two sample volumes based on ultrasound data corresponding to the at least two sample volume, the processing unit being further configured to perform an image process for forming a compound image upon the at least two Doppler spectrum images to form the compound image. 1. An ultrasound system , comprising:a processing unit configured to form at least two Doppler spectrum images corresponding to at least two sample volumes based on ultrasound data corresponding to the at least two sample volume, the processing unit being further configured to perform an image process for forming a compound image upon the at least two Doppler spectrum images to form the compound image.2. The ultrasound system of claim 1 , wherein the image process includes at least one of a first image process for adding pixel values corresponding to pixels of same positions on the at least two Doppler spectrum images claim 1 , a second image process for subtracting the pixel values corresponding to the pixels of the same positions on the at least two Doppler spectrum images claim 1 , a third image process for multiplying the pixel values corresponding to the pixels of the same positions on the at least two Doppler images claim 1 , and a fourth image process for performing a blending process among the at least two Doppler spectrum images.3. The ultrasound system of claim 1 , further comprising:an ultrasound data acquiring unit configured to transmit ultrasound signals to a living body in at least one transmission direction and receive ultrasound echo signals from the living body in at least one reception direction to acquire the ultrasound data corresponding to the at least two sample ...

ULTRASONIC DEVICE AND METHOD OF GENERATING ULTRASONIC IMAGE USING VECTOR DOPPLER

Disclosed is a method for generating an ultrasonic image, the method including: transmitting an ultrasonic signal to a predetermined portion of an object and receiving at least three response signals which are reflected from the predetermined portion; selecting at least two response signals from among the at least three received response signals; and acquiring vector information which indicates a speed and a movement direction of the predetermined portion based on a receiving angle and a Doppler frequency of each of the selected at least two response signals. 1. A method for generating an ultrasonic image , the method comprising:transmitting an ultrasonic signal to a predetermined portion of an object and receiving at least three response signals which are respectively reflected from the predetermined portion;selecting at least two response signals from among the at least three received response signals; andacquiring vector information which indicates a speed and a movement direction of the predetermined portion based on a respective receiving angle and a respective Doppler frequency of each of the selected at least two response signals.2. The method of claim 1 , wherein the selecting the at least two response signals comprises selecting the at least two response signals based on at least one of a respective receiving angle and a respective power of each of the at least three received response signals.3. The method of claim 2 , wherein the selecting the at least two response signals comprises selecting the at least two response signals from among the at least three response signals in a descending order of the powers of the at least three received response signals.4. The method of claim 1 , wherein the acquiring the vector information comprises acquiring the respective Doppler frequency of each of the selected at least two response signals by using a respective autocorrelation of ensemble signals for each of the selected at least two response signals.5. A method for ...

Method and System for Measuring Pulmonary Artery Circulation Information

Minimally invasive systems and methods are described for measuring pulmonary circulation information from the pulmonary arteries. A transbronchial Doppler ultrasound catheter is advanced through the airways and in the vicinity of the pulmonary artery. Doppler ultrasound energy is sent through the airway wall and across the pulmonary artery to obtain velocity information of blood flowing through the artery. The velocity information is used to compute pulmonary circulation information including but not limited to flowrate. 1. (canceled)2. A method comprising:receiving ultrasonic waves from at least one ultrasound transducer of a transbronchial catheter positioned inside an airway of a lung, the at least one ultrasound transducer being functionally coupled to a wall of the airway in proximity with a blood vessel;determining a measured pressure value by electronically processing the received ultrasonic waves; andproviding a comparison by electronically processing the measured pressure value with a plurality of predetermined pressure values. The present application is a Continuation of Ser. No. 12/272,703 filed Nov. 17, 2008 (Allowed), which application claims the benefit under 35 USC 119(e) of U.S. Provisional Application No. 60/988,738 filed Nov. 16, 2007. The full disclosures, each of which are incorporated herein by reference in their entirety for all purposes.It is well established that assessing pulmonary arterial pressure (PAP) is useful in diagnosing pulmonary disease such as pulmonary hypertension. PAP, however, may remain relatively unchanged following clinical treatment to address pulmonary hypertension. Thus, while useful as an indicator of the presence of pulmonary disease, PAP alone may not be practical for evaluating improvement and patient response to treatment. For this reason, additional pulmonary circulation information is desired.Total pulmonary vascular resistance (TPR) provides information about the flowrate and pressure in the pulmonary vasculature ...

DETECTING A STENOSIS IN A BLOOD VESSEL

Doppler ultrasound may be used to detect stenosis in a blood vessel using a variety of approaches. In one approach, the flow envelope is extracted from the Doppler ultrasound measurements, and the extracted flow envelope is parameterized. Classification is then done based on those parameters (and optionally other parameters), to determine whether a stenosis exists. A second approach uses Doppler data that is acquired in a direction that is perpendicular to the direction of blood flow, and detects artifacts that are consistent with turbulences that usually appear downstream from stenoses. 1. A method of detecting a stenosis in a vessel through which a fluid is flowing , the method comprising the steps of:generating a beam of ultrasound energy;aiming the beam at a point in the vessel at an angle of less than 20° with respect to a plane that (a) is perpendicular to the direction of flow in the vessel and (b) passes through the point;using Doppler processing to detect, within the vessel, velocity components of fluid motion that are perpendicular to the direction of fluid flow;repeating the aiming step and the using Doppler processing step at a plurality of points in the vessel;identifying a location in the vessel at which the detected velocity components have high power at high velocities; anddetermining that there is a high likelihood that a stenosis is present at a position that is upstream from the identified location.2. The method of claim 1 , further comprising the step of outputting an indication of the identified location.3. The method of claim 1 , further comprising the step of outputting an indication that specifies the position that is upstream from the identified location.4. The method of claim 3 , wherein the specified position is between 1 and 3 cm upstream from the identified location.5. The method of claim 3 , wherein the specified position is upstream from the identified location by amount equal to about 4-5 times the diameter of the vessel.6. The method ...

Ultrasonic diagnostic apparatus and ultrasonic diagnostic apparatus control method

In one embodiment, an ultrasonic diagnostic apparatus continuously generates driving signals by frequency-modulating waveforms having a plurality of center frequencies respectively assigned to orientation directions and multiplexing the waveforms and transmits continuous waves, and generates beam signals corresponding to the respective orientation directions by adding the respective echo signals and demultiplexing the signals for the respective center frequencies, demodulates beam signals corresponding to the respective orientation directions, frequency-analyzes the demodulated beam signals, calculates two-dimensional (beam direction and range direction) mapping of beam signals.

METHOD AND APPARATUS FOR LOCATING AND DISTINGUISHING BLOOD VESSEL

A apparatus and a method are disclosed for transmitting a signal directed to a blood vessel via a Doppler ultrasound waveform apparatus, receiving, by the Doppler ultrasound waveform apparatus, a reflected signal from the blood vessel; and determining, by a processing device, whether the blood vessel is an artery or a vein based on a blood flow velocity in the blood vessel. 1. A method comprising:transmitting a signal directed to a blood vessel via a Doppler ultrasound waveform apparatus;receiving, by the Doppler ultrasound waveform apparatus, a reflected signal from the blood vessel; anddetermining, by a processing device, whether the blood vessel is an artery or a vein based on a blood flow velocity in the blood vessel.2. The method of claim 1 , further comprising displaying an indication of whether the blood vessel is an artery or a vein.3. The method of claim 2 , further comprising displaying an indication of a confidence level as to whether the blood vessel is an artery or a vein.4. The method of claim 1 , further comprising determining a phase of a Doppler shift and transmitting the results to a file.5. The method of claim 1 , further comprising sterilizing the apparatus.6. The method of claim 1 , wherein the Doppler ultrasound waveform apparatus is a tone burst excitation differential Doppler apparatus claim 1 , further comprising:determining a location of the blood vessel; anddisplaying an indication of the location of the blood vessel.7. The method of claim 1 , wherein the blood vessel is located in a human arm claim 1 , further comprising:determining that the blood vessel is an artery when the blood flow velocity is between 60 cm/sec and 100 cm/sec; anddetermining that the blood vessel is a vein when the blood flow velocity is between 10 cm/sec and 20 cm/sec.8. The method of claim 7 , further comprising:determining a high confidence level that the blood vessel is an artery when the blood flow velocity is between 75 cm/sec and 85 cm/sec; anddetermining a ...

Method and a System for Monitoring, Contractions and/or a Birth Process and/or the Progress and/or Position of a Fetus

A method of monitoring a pregnant woman by identifying a moving organ in the woman and tracking or monitoring a movement of said organ using ultrasound. Optionally, the identifying is non-imaging. Optionally or alternatively, the moving organ is part of a fetus and a position of a head is optionally calculated form a heart position which is directed detected. 1. A method for monitoring movement of a fetus in a pregnant woman comprising:a) transmitting ultrasonic acoustic energy into the pregnant woman and the fetus;b) receiving ultrasound acoustic energy signals modulated by a fetal moving organ;c) analyzing the received ultrasound acoustic energy signals;d) automatically identifying said modulation by moving organ from said analysis; ande) estimating at least one of the location and the spatial displacement of said moving organ or said fetus based on said identifying.2. A method according to claim 1 , wherein said method uses only non-imaging ultrasound.3. A method according to claim 1 , wherein said estimating is in more than one dimension.4. A method according to claim 1 , wherein said organ is cyclically moving.5. A method according to claim 4 , wherein said automatically identifying comprises obtain a frequency of cycles and a distance of cycling organ from an ultrasonic transducer.6. A method according to claim 4 , where the cycling organ is the fetal heart.7. A method according to claim 1 , wherein estimating comprises using three transducers are used together with a triangulation method to determine the location of the moving organ in space relative to the ultrasonic transducers.8. A method according to claim 1 , comprising tracking a movement in space of said moving organ or of an organ mechanically connected to said moving organ.9. A method according to claim 1 , comprising:presenting the results of said estimating.10. A method according to claim 1 , comprising:monitoring a descent of said fetus based on said estimating.11. The method of claim 9 , wherein ...

HEAD UNIT, ULTRASONIC PROBE, ELECTRONIC INSTRUMENT, AND DIAGNOSTIC DEVICE

A head unit for an ultrasonic probe includes a connecting section, an element chip and a storing section. The connecting section is configured to electrically connect the head unit to a probe main body of the ultrasonic probe. The element chip includes an ultrasonic element array having a substrate defining a plurality of openings arranged in an array pattern and a plurality of ultrasonic transducer elements with each of the ultrasonic transducer elements being provided in each of the openings. The element chip is configured to be electrically connected to a processing device of the probe main body through the connecting section. The storing section is configured to store operation setting information of the processing device to be output to the processing device through the connecting section. 1. A head unit for an ultrasonic probe comprising:a connecting section configured to electrically connect the head unit to a probe main body of the ultrasonic probe;an element chip including an ultrasonic element array having a substrate defining a plurality of openings arranged in an array pattern and a plurality of ultrasonic transducer elements, each of the ultrasonic transducer elements being provided in each of the openings, the element chip being configured to be electrically connected to a processing device of the probe main body through the connecting section; anda storing section configured to store operation setting information of the processing device to be output to the processing device through the connecting section.2. The head unit according to claim 1 , whereinthe processing device has an analog front-end section configured to perform signal processing to a signal received from the ultrasonic element array, andthe storing section is configured to store gain setting information for setting gain of at least one of a low noise amplifier and a programmable gain amplifier of the analog front-end section as the operation setting information.3. The head unit ...

METHODS AND SYSTEMS FOR COLOR FLOW DYNAMIC FRAME PERSISTENCE

Methods and systems for color flow dynamic frame persistence in ultrasonic imaging are provided. 15-. (canceled)6. A method for calculating blood vessel direction of a flow velocity image comprising a plurality of points , the method comprising:distinguishing each of the points in the flow velocity image as points in a flow region and points in a background region;extracting a skeleton of the flow region from the distinguished image; andcalculating a direction of each point of the skeleton according to a plurality of neighbor points of each computing point of the skeleton.7. The method of claim 6 , wherein the direction of at least one point of the skeleton is regarded as the direction of points not on the skeleton claim 6 , wherein the point of the skeleton is nearest to the points not on the skeleton and can be lined up in the flow region in the distinguished image.8. The method of claim 6 , wherein calculating comprises applying linear fitting or Hough Transform to a plurality of neighbor points of the skeleton of each computing point of the skeleton so as to calculate the direction of each point of the skeleton.9. The method of claim 6 , wherein the extraction step further comprises deburring the extracted skeleton.10. A method for color flow dynamic frame persistence claim 6 , comprising:acquiring a result of a previous frame persistence and a current flow velocity image;calculating a blood vessel direction reflected by the result of the previous frame persistence;offsetting the result of previous frame persistence along the blood vessel direction with flow direction and flow velocity; andperforming frame persistence between the current flow velocity image and the offset result of the previous frame persistence.11. The method of claim 10 , further comprising:interpolating the points which have no value in the offset velocity image.12. The method of claim 10 , wherein calculating comprises calculating the blood vessel direction with gradient properties.13. The ...

AUTOMATED IDENTIFICATION OF THE LOCATION OF A REGURGITANT ORIFICE OF A MITRAL VALVE IN AN ULTRASOUND IMAGE

An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a mitral valve, including the automatic indication of the location of a regurgitant orifice in an ultrasound image. A clinician images the regurgitant valve and indicates in the image the presumed location of the regurgitant orifice (). A flow quantification processor is responsive to this initial location estimate by the clinician to calculate a refined estimation of the orifice location. The refined location is indicated on the ultrasound image by the imaging system, either by relocating an icon placed by the clinician, or displaying a second icon () on the image at the refined location. 1. A diagnostic ultrasound system for assessing regurgitant flow comprising:an ultrasound probe having a transducer array for transmitting ultrasonic energy to and receiving ultrasonic echoes from a location of regurgitant flow in a body;an image processor, responsive to received echoes, for producing an ultrasound image of the location of regurgitant flow;a Doppler processor responsive to received echoes for producing Doppler ultrasound measurements of blood flow velocity in the vicinity of the location of regurgitant flow;a flow quantification processor responsive to blood flow velocity measurements in the vicinity of a regurgitant orifice to produce calculated location coordinates of the orifice; andan ultrasound image display, responsive to the image processor and the flow quantification processor, which displays an indication of the location of the orifice in an ultrasound image at the calculated location coordinates.2. The diagnostic ultrasound system of claim 1 , wherein the Doppler processor produces measurements of blood flow velocity in a flow velocity field in the vicinity of the location of regurgitant flow.3. The diagnostic ultrasound system of claim 1 , further comprising a user control operable by a user to indicate a location of an orifice in the ultrasound image.4. The ...

ANALYSIS OF MITRAL REGURGITATION FROM SLIT ORIFICES BY ULTRASONIC IMAGING

An ultrasonic diagnostic imaging system is described which quantifies regurgitant flow through a plurality of pinhole leaks or a slit leak of a mitral valve. A plurality of orifice locations of a leaking valve are identified and Doppler values obtained from a flow velocity field proximal each orifice. The Doppler values of each flow velocity field vectorially relating to the orifice location are processed to produce a measure of flow through the orifice. The flow measurements for a plurality of such orifices are summed to produce a quantified measure of regurgitant flow through a plurality of pinhole leaks or along a slit leak. 1. A method for measuring regurgitant flow from multiple or slit orifices comprising:identifying a first orifice location;acquiring ultrasonic echo signals in the vicinity of the first orifice location;processing the echo signals to produce a quantification of flow rate or volume flow through the first orifice location;identifying a second orifice location;acquiring ultrasonic echo signals in the vicinity of the second orifice location;processing the echo signals to produce a quantification of flow rate or volume flow through the second orifice location; andcombining the quantifications of flow rate or volume flow through the two orifice locations.2. The method of claim 1 , wherein the first processing step further comprises Doppler processing the echo signals to identify flow vectors toward the first orifice location; andwherein the second processing step further comprises Doppler processing the echo signals to identify flow vectors toward the second orifice location.3. The method of claim 1 , wherein the first acquiring step further comprises acquiring ultrasound echo signals from a two dimensional acceptance zone proximal the first orifice location; andwherein the second acquiring step further comprises acquiring ultrasound echo signals from a two dimensional acceptance zone proximal the second orifice location.4. The method of claim 3 , ...

COLOR FLOW IMAGING METHOD, AND ULTRASONIC DEVICE THEREFOR

A color flow imaging method and an ultrasonic imaging system are provided. The ultrasonic imaging system includes: a transceiver unit configured to transmit an ultrasonic wave signal for acquisition of a C-mode image to a subject and receive an ultrasonic wave echo signal reflected from the subject; a storage unit configured to store the received echo signal; a control unit configured to output an interpolated signal by interpolating ensembles of at least one scan line for acquisition of the C-mode image identified based on the received echo signal; and an image processor configured to form the C-mode image based on the interpolated signal and to output the C-mode image on a display unit. 1. An ultrasonic imaging system , comprising:a transceiver unit configured to transmit an ultrasonic wave signal for acquisition of a C-mode image to a subject and receive an ultrasonic wave echo signal reflected from the subject;a control unit configured to output an interpolated signal by interpolating ensembles of at least one scan line for acquisition of the C-mode image identified based on the received echo signal; andan image processor configured to form the C-mode image based on the interpolated signal and to output the C-mode image on a display unit.2. The ultrasonic imaging system of claim 1 , wherein the control unit controls the transceiver unit such that the number of the ensembles is reduced by decreasing the number of repetitions of transmission/reception of the ultrasonic wave signal with respect to the scan line for acquisition of the C-mode image by a predetermined number of times claim 1 , and enables the transceiver to form the received echo signal corresponding to the ultrasonic wave signal.3. The ultrasonic imaging system of claim 2 , wherein the control unit controls the transceiver unit such that the number of the ensembles is reduced by half by halving the number of repetitions of transmission/reception of the ultrasonic wave signal with respect to the scan ...

AUTOMATED DOPPLER VELOCIMETRY USING A LOW-COST TRANSDUCER

An automatic, stand-alone, hand-held ultrasound blood-vessel examination device () requires a reduced number of transducer elements () and presents a simplified user interface (-), without the need for displaying an image of any of the vessels. The probe, in one embodiment, acquires and examines a volume of interest (), searches for a target vessel, tests the vessel for normality of blood flow, and reports the diagnosis, all automatically and without need for user intervention. In another embodiment, the probe finds a body vessel (-) in a volume, and extracts a clinical Doppler parameter, all automatically and without need for user intervention. 1. An ultrasound device configured for carrying out a series of acts , said series comprising:a) examining, using an ultrasound probe of the ultrasound device, a volume to find body vessels present within the volume; and, 'wherein said acts of examining and selecting (i) do not rely on a display of ultrasound scan images, and (ii) are performed automatically and without need for user intervention to interpret an ultrasound scan image.', 'b) if one or more vessels are found within the volume in said examining, then b1) selecting, for fluid-flow analysis, a vessel from among said vessels found within the volume, b2) generating, for said fluid-flow analysis, information particular to the selected vessel, b3) determining, based on the generated information, whether said selected vessel matches a target vessel, and b4) if the selected vessel matches the target vessel, then b4) (i) providing, based on the generated information, an indication as to normality of fluid flow in the selected vessel, else b4) (ii) repeating the selecting, generating, and determining with a next vessel of the vessels found, until there is no further next vessel of the vessels found within the volume,'}2. (canceled)3. The ultrasound device of claim 1 , wherein the generated information comprises a quantitative characteristic of a waveform claim 1 , ...

ULTRASONIC DIAGNOSTIC APPARATUS, IMAGE DISPLAY METHOD, AND IMAGE PROCESSING APPARATUS

According to one embodiment, a scanning unit scans the inside of an object administered with a contrast agent with ultrasonic waves. A signal generation unit outputs a packet signal based on the reception signal output from the scanning unit. A first wall filter has a passband corresponding to a blood flow component. A second wall filter has a passband corresponding to a tissue perfusion component and blood flow component. A maximum value holding computation processing unit applies maximum value holding computation processing to a first image corresponding to an output from the first wall filter. A display unit displays the first image having undergone maximum value holding computation processing and a second image corresponding to an output from the second wall filter. 1. An ultrasonic diagnostic apparatus comprising:an ultrasonic probe;a scanning unit configured to scan inside of an object administered with a contrast agent with an ultrasonic wave via the ultrasonic probe;a signal generation unit configured to generate a quadrature detection signal based on a reception signal output from the scanning unit and output a packet signal constituted by the plurality of quadrature detection signals;a first wall filter having a passband corresponding to a blood flow component included in the packet signal;a second wall filter having a passband corresponding to a tissue perfusion component and blood flow component included in the packet signal;a maximum value holding computation processing unit configured to apply maximum value holding computation processing to a first image corresponding to an output from the first wall filter; anda display unit configured to display the first image having undergone the maximum value holding computation processing and a second image corresponding to an output from the second wall filter.2. The ultrasonic diagnostic apparatus of claim 1 , further comprising a control unit configured to switch between a first mode of causing the display ...

METHOD FOR CORRECTING BLOOD PRESSURE ESTIMATION PARAMETER AND BLOOD PRESSURE MEASUREMENT APPARATUS

As different artery blood pressure combination measurement, peripheral blood pressure combination measurement that combines blood vessel diameter measurement to measure a blood vessel diameter as a blood vessel cross-section index value of a central artery as a first artery with peripheral blood pressure measurement to measure blood pressure of a peripheral artery as a second artery is conducted. Then, a parameter for a blood pressure estimation process (for example, a blood vessel hardness parameter or a correlation parameter) that estimates the central aortic blood pressure from the blood vessel diameter of the central artery is corrected by using measurement results of the peripheral blood pressure combination measurement. 1. A method for correcting a blood pressure estimation parameter comprising:conducting different artery blood pressure combination measurement that combines blood vessel cross-section index value measurement to measure a blood vessel diameter or a blood vessel cross-sectional area (hereinafter, “blood vessel diameter” or “blood vessel cross-sectional area” are collectively referred to as “blood vessel cross-section index value”) of a first artery with blood pressure measurement of a second artery; andcorrecting a parameter for a blood pressure estimation process that estimates blood pressure of the first artery from a blood vessel cross-section index value of the first artery by using measurement results of the different artery blood pressure combination measurement.2. The method for correcting a blood pressure estimation parameter according to claim 1 , wherein the parameter includes a correlation parameter regarding a relationship between a diastolic blood vessel cross-section index value and diastolic blood pressure of the first artery claim 1 , and the correcting step includes correcting the correlation parameter by using measurement results of the different artery blood pressure combination measurement.3. The method for correcting a blood ...

System and Method Using Forward Looking Imaging for Valve Therapies

A system is provided for aortic valve imaging utilizing forward looking imaging sensors. A method of imaging the aortic valve is provided that can be utilized for diagnostic evaluation and the delivery of a therapy. In one form, the imaging system can be used to place a replacement aortic valve. In another aspect, an imaging system is combined with a valve replacement delivery system. 1. A medical method , comprising:positioning a guidewire and a forward looking imaging device in the vasculature of a patient;advancing the guidewire and forward looking imaging device to a position adjacent the aortic valve;imaging the aortic valve with the forward looking imaging device to obtain a valve image and determine properties of the valve;crossing the aortic valve with at least a distal portion of the guidewire utilizing the valve image.2. The method of claim 1 , wherein said imaging includes imaging tissue positioned distally beyond a distal tip of the guidewire.3. The method of claim 1 , wherein the valve image is an axial image of the valve.4. The method of claim 1 , wherein said advancing includes advancing along a first path claim 1 , the method further including determining a second path based on the valve image and aligning a least a distal tip of the guidewire with the second path and said crossing includes advancing the distal tip along the second path.5. The method of claim 4 , wherein the first path defines a first longitudinal axis for at least the distal tip and said aligning includes rotating or moving the distal tip laterally away from the first longitudinal axis.6. The method of claim 1 , wherein the advancing includes positioning the forward looking imaging device in the superior vena cava oriented to view the aortic valve.7. The method of claim 1 , wherein the advancing includes positioning the forward looking imaging device in the right atrium oriented to view the aortic valve.8. The method of claim 1 , wherein the advancing includes positioning the ...

ULTRASOUND IMAGE CAPTURE DEVICE, ULTRASOUND IMAGE CAPTURE METHOD, ULTRASOUND IMAGE CAPTURE PROGRAM

Provided is a technology which quantitatively measures blood flow in the vicinity of circulatory organs. An ultrasound image capture device according to the present invention removes an image portion corresponding to an organ shape by taking the difference of a multi-frame ultrasound image, and thereafter computes a measured value of a blood flow velocity vector on the basis of a plurality of images at different timings (as per FIG. ). 1. An ultrasound imaging device that images an ultrasound image , comprising:an ultrasound transceiver that irradiates an ultrasound wave to a subject and receives a reflected signal; anda blood flow detection unit that detects a blood flow velocity in the subject using the reflected signal;wherein removes an image indicating a tissue shape of the subject based on a plurality of ultrasound images of the subject created by using the reflected signal at different times, and', 'calculates a blood flow velocity vector in the subject based on a plurality of images at different times in which the image indicating the tissue shape of the subject is removed., 'the blood flow detection unit'}2. The ultrasound imaging device according to claim 1 , wherein:the blood flow detection unit calculates the blood flow velocity vector in the subject by performing a pattern matching between the plurality of ultrasound images.3. The ultrasound imaging device according to claim 1 , the ultrasound imaging device further comprising a shape recognition unit that recognizes a tissue shape of the subject using the reflected signal claim 1 , wherein: identifies a boundary surface between a tissue of the subject and a blood flow based on a recognition result of the shape recognition unit, and', 'calculates or corrects the blood flow velocity by applying a consistent condition under a fluid mechanics on the boundary surface., 'the blood flow recognition unit'}4. The ultrasound imaging device according to claim 3 , wherein:the blood flow detection unit assumes that ...

Device and System For Imaging and Blood Flow Velocity Measurement

Apparatuses, systems, and methods for intravascular ultrasound (IVUS) imaging and blood flow velocity measurement within a vessel using a rotational IVUS catheter are disclosed. The rotational IVUS catheter includes a transducer that is mounted to the catheter at an angle relative to the longitudinal axis of the catheter shaft, such that the imaging surface is substantially nonperpendicular to the angle of the blood flow. The IVUS imaging system includes the rotational IVUS catheter with the tilted transducer, sequencing hardware to generate a series of uniformly spaces transmit pulses and acquisitions per encoder pulse, and signal processing hardware to extract the phase from the ultrasound echo signals for velocity estimation at every pixel of the IVUS image. The system is configured to generate a hybrid IVUS image showing both structural and velocity characteristics of the vessel and the blood therein. 1. An imaging system , at least partially insertable into a structure of a living body , the system comprising:an elongate member having a longitudinal axis extending along a distal portion, the elongate member having an energy emitter and echo receiver mounted adjacent the distal portion at an angle relative to the longitudinal axis such that an energy pulse generated by the energy emitter propagates from the elongate member at a non-perpendicular angle relative to the longitudinal axis, the echo receiver configured to collect velocity and amplitude data, the elongate member including a plurality of conductors extending between the energy emitter and echo receiver disposed adjacent the distal portion and a connection assembly disposed adjacent an opposite proximal portion of the elongate member;an actuator coupled to the energy emitter, the actuator configured to move the energy emitter through a series of positions extending over at least a portion of a revolution; anda control system coupled to the connection assembly, the control system configured to control ...

Device, System and Method for Flow Imaging in the Body Using a Swept Transducer

An ultrasound imaging system is disclosed. The system comprises an ultrasound emitter and receiver movably disposed within an elongate member, an actuator coupled to the emitter, and a control system. The actuator moves the emitter through a path comprising at least a portion of an arc. The control system controls the emission of a sequence of pulses from the emitter and receives from the receiver ultrasound echo data associated with the sequence of pulses emitted along the path. The control system processes the ultrasound echo data to generate a cross-sectional image of an internal structure based on echo amplitude data and echo velocity data. 1. An ultrasound imaging system , the system comprising:an ultrasound emitter and receiver movably disposed within an elongate member;an actuator coupled to the emitter, the actuator moving the emitter through a path comprising at least a portion of an arc; anda control system controlling the emission of a sequence of pulses from the emitter and receiving from the receiver ultrasound echo data associated with the sequence of pulses emitted along the path, the control system processing the ultrasound echo data to generate an image based on echo amplitude data and echo velocity data.2. The system of claim 1 , wherein the actuator couples to the ultrasound emitter through a drive shaft extending substantially the entire length of the elongate member claim 1 , the actuator rotating the ultrasound emitter through a continuous 360 degree arc generally about a longitudinal axis of the elongate member.3. The system of claim 1 , wherein the actuator is disposed within the elongate member.4. The system of claim 3 , wherein the actuator rotates the ultrasound emitter through only a portion of an arc such that the ultrasound emitter oscillates between a first point and a second point along the path.5. The system of claim 4 , wherein the control system processes the echo amplitude data as the emitter moves from the first point to the ...

SYSTEM, METHOD AND DEVICE FOR AUTOMATIC AND AUTONOMOUS DETERMINATION OF HEMODYNAMIC AND CARDIAC PARAMETERS USING ULTRASOUND

The present disclosure relates to an ultrasound device, system and a method for determination of cardiac and/or hemodynamic parameters, and in particular, to such a system, and method in which the cardiac and/or hemodynamic parameters are determined in a non-invasive manner that is both automatic and autonomous and, therefore, does not depend on ultrasound imagery and/or a skilled caregiver analysis thereof. 1. A non-invasive method for automatically and autonomously determining at least one of cardiac and hemodynamic parameters of a subject based on an ultrasound scan of a static scanning area over a chest of said subject , wherein said scan is performed without presenting an ultrasound image of said static scanning area to at least one of a user , practitioner , and caregiver , the method comprising:a. scanning the static scanning area over the chest of the subject with an ultrasound probe comprising an array of a plurality of ultrasound transducers;b. determining autonomously at least two vessel parameters for at least two vessels within said static scanning area; andc. processing said at least two vessel parameters for at least one of said two vessels to determine said at least one of cardiac and hemodynamic parameters of said subject, said processing including:d. obtaining a collection of points corresponding to a plurality of ultrasound signals detected and configured to be received from said array of ultrasound transducers, wherein said points correspond to locations about a surface of at least one of the vessels;e. arranging said points on at least two axes;f. confining all of said points within a quadrilateral about the two axes;g. determining a center of said quadrilateral;h. projecting a plurality of chords from said quadrilateral center to intersect with said points;i. selecting a smallest chord from said plurality of projected chords intersecting with said points; wherein said smallest chord defines a diameter of said at least one of said two vessels ...

BIOMETRIC INFORMATION MEASURING DEVICE AND BIOMETRIC INFORMATION MEASURING SYSTEM

Though mechanocardiogram is considered to have a high medical value, mechanocardiogram recording device is large in size and very expensive, obtained data lacks reliability, a measurement algorithm has not been settled, use of an apexcardiogram for diagnosis is not useful for diagnosis of the circulatory system, and there has been no measuring equipment capable of measuring pexcardiogram which contribute to determination of heal condition of a living body to be measured. For measurement of heartbeat of a living body, measuring device which allows simple measurement of apexcardiogram at bedside has been developed using a pressure sensor and/or wave sensor capable of measuring change in pressure at multiple portions adjacent to one another, and simple electronic circuit. Data processing algorithm for obtaining health information of a living body to be measured with high reliability from measured apexcardiogram and a biometric information measuring device having a new data processing algorithm on board have been developed to solve the problem. 2. (canceled)33456712. The biometric information measuring device according to claim 1 , wherein the data processor comprises at least the first characteristic-point determinator claim 1 , and at least either the characteristic-point determinator or the waveform determinator claim 1 , and determines regarding the P() claim 1 , the P() claim 1 , and the P() using the characteristic-point determinator and the waveform determinator claim 1 , determines regarding the P() and P() claim 1 , and then determines regarding the P() and P() claim 1 , thereby assessing the health condition of an living body to be measured.4. (canceled)52335266767. The biometric information measuring device according to claim 1 , wherein the third characteristic-point determinator uses at least one of criteria: whether either the P()-P() time is 50 ms or greater and less than 125 ms or falls between 125 ms and 150 ms claim 1 , whether either the P()-P() time ...

METHOD AND DEVICE FOR POSITIONING A DOPPLER ULTRASOUND TRANSDUCER FOR BLOOD FLOW MEASUREMENT AND A SYSTEM FOR BLOOD FLOW MEASUREMENT

The method of positioning a Doppler ultrasound transducer for performing blood flow measurement according to the invention comprises the steps of: detecting a pressure oscillation signal from an inflated cuff placed on patient's artery; detecting an ultrasound pulse signal from the Doppler ultrasound transducer placed along the artery; deriving a first signal from the pressure oscillation signal and the ultrasound pulse signal, the first signal indicating the degree of synchronization between the pressure oscillation signal and the ultrasound pulse signal; and outputting an indication signal to indicate the Doppler ultrasound transducer is in a desired position when the first signal satisfies a predefined condition. Since the synchronization property of the cuff pressure oscillation signal and the ultrasound signal caused by the blood flow is utilized to determine whether the transducer is well positioned or not, ultrasound signal, which is a pulse signal but not reflecting the blood flow of the artery, could be determined as not in synchronization with the oscillation signal and therefore the accuracy of the positioning could be improved. 1. A method of positioning a Doppler ultrasound transducer for blood flow measurement , comprising the steps of:detecting a pressure oscillation signal from an inflated cuff placed on an artery of a patient;detecting an ultrasound pulse signal from the Doppler ultrasound transducer placed along the artery;deriving a first signal from the pressure oscillation signal and the ultrasound pulse signal, the first signal indicating the degree of synchronization between the pressure oscillation signal and the ultrasound pulse signal; andoutputting an indication signal to indicate that the Doppler ultrasound transducer is in a desired position when the first signal satisfies a predefined condition.2. The method of claim 1 , wherein the first signal is derived from the time intervals measured between two consecutive peaks of the pressure ...

Ultrasonic diagnosis apparatus and control program thereof

An ultrasonic diagnostic apparatus is provided. The ultrasonic diagnostic apparatus includes a display controller configured to cause an image to be displayed, wherein the image is generated using a map that includes two or more parameters as axes, the two or more parameters selected from inflow parameters each indicative of a state of inflow of a contrast agent administered to a subject and outflow parameters each indicative of a state of outflow of the contrast agent.

METHOD AND/OR APPARATUS FOR MEASURING RENAL DENERVATION EFFECTIVENESS

The present invention, in some embodiments thereof, relates to methods and/or apparatus for measuring the effectiveness of a renal denervation treatment. In some embodiments, a method for determining effectiveness of the denervation treatment comprises tracking at least one of arterial wall movement, arterial blood flow rate, arterial blood flow velocity, blood pressure and arterial diameter at one or more selected locations in the renal artery over time, and assessing the effectiveness of said renal denervation treatment according to results obtained by tracking. 1. A method for assessing renal denervation treatment , comprisinginserting a measurement device into an artery;tracking at least one of arterial wall movement, arterial blood flow rate, arterial blood flow velocity, blood pressure and arterial diameter at one or more selected locations in the renal artery over time; andassessing the effectiveness of said renal denervation treatment according to results obtained by said tracking.2. The method according to claim 1 , wherein said selected location is a location of tissue ablation.3. The method according to claim 1 , wherein said selected location is at a horizontal distance of at least 0.5 cm from a location of tissue ablation.4. The method according to claim 1 , wherein said tracking over time comprises measuring at least one of said parameters continuously during said denervation treatment.5. The method according to claim 1 , wherein said tracking over time comprises measuring at least one of said parameters at least 5 times claim 1 , periodically every 30 seconds.6. The method according to claim 1 , wherein said assessing is performed by analyzing measurement results of two or more parameters combined together.7. The method according to claim 1 , wherein assessing comprises detecting a change in arterial diameter over time.8. The method according to claim 1 , wherein a stiffness of said artery is determined according to at least one of arterial wall ...

ULTRASONIC EVALUATION OF VENOUS STRUCTURES

Provided are methods and systems for detecting a maturing arterio-venous fistula comprising a vein. An exemplary method comprises determining a wall thickness of the fistula and a lumen diameter of the fistula vein using a high frequency ultrasound imaging system. A blood pressure of the subject is determined. A circumferential vessel wall stress is determined from the measured blood pressure, the wall thickness of the fistula and a determined radius of the measured diameter of the fistula. The determined circumferential vessel stress is compared to a predetermined threshold stress to determine if the fistula is mature. 1. A system for detecting a maturation of an arterio-venous fistula in a subject , the fistula defining a lumen , the system comprising:a high frequency ultrasound transducer having a center frequency of at least 10 MHz, wherein the transducer is configured to receive ultrasound data from the subject;a memory configured to store instructions and ultrasound data from the transducer; producing an ultrasound image using the ultrasound data,', 'measuring a wall thickness of a fistula in the ultrasound image,', 'measuring a diameter of a lumen defined by the fistula,', 'determining a circumferential stress of the fistula based on at least one of the wall thickness, the diameter of the lumen, and a blood pressure of the subject, and', 'comparing the circumferential stress to a predetermined threshold; and, 'a processor configured to execute instructions stored on the memory including instructions for—'}a display configured to output a notification to an operator that the fistula is mature.2. The system of wherein the instructions include instructions for outputting a notification to an operator that the fistula is not mature if the circumferential stress is greater than the predetermined threshold.3. The system of wherein the predetermined threshold is between about 7.00E+04 to 2.80E+05 N/m.4. The system of wherein the predetermined threshold is between ...

FLOW VELOCITY ESTIMATION AND ULTRASOUND SYSTEMS FOR FLOW VELOCITY ESTIMATION

Systems and methods for measuring flow velocities, including ultrasound systems, are provided. A Doppler angle between a direction of ultrasound signals and an axis of a flow may be estimated to improve the accuracy of the flow velocity estimation that is based on Doppler effects. A sensor may be mounted on or in an ultrasound probe to obtain a reference orientation of the ultrasound probe and an orientation of the ultrasound probe relative to the reference orientation when the ultrasound probe is moved to other positions. The Doppler angle may be estimated based on the orientation of the ultrasound probe. 1. A method for measuring a flow velocity , the method comprising:transmitting ultrasound signals to a target object, the ultrasound signals being emitted from an ultrasound signal transmitter in a ultrasound device;detecting ultrasound echo signals resulting from the ultrasound signals emitted to the target object, the ultrasound echo signals being reflective of a flow within the target object;detecting, by a sensor, an orientation of the ultrasound device relative to a reference orientation, the reference orientation comprising a Doppler angle of about 90 degrees;estimating a Doppler angle between a primary direction of the ultrasound signals and an axis of the flow within the target object based on at least the orientation of the ultrasound device; andestimating the flow velocity of the flow within the target object based on at least an estimated Doppler angle.2. The method of claim 1 , wherein the reference orientation is determined based on a Doppler image of a projected flow velocity on the primary direction of the ultrasound signals.3. The method of claim 2 , wherein the projected flow velocity is approximately zero when the ultrasound device is placed at the reference orientation.4. The method of claim 1 , wherein the sensor is mounted on or in the ultrasound device for detecting the orientation of the ultrasound device.5. The method of claim 1 , wherein a ...

ULTRASOUND DIAGNOSTIC APPARATUS AND METHOD FOR IDENTIFYING BLOOD VESSEL

An ultrasound diagnostic apparatus which detects a target blood vessel of a subject based on reflected ultrasound waves obtained, using an ultrasound probe, from the subject, the ultrasound diagnostic apparatus including: a B-mode image generation unit which generates a tomographic image of the subject, based on the reflected ultrasound waves; a blood flow image generation unit which generates blood flow information indicating a blood flow region of the subject in the tomographic image, based on the reflected ultrasound waves; and a blood flow region determination unit which determines whether or not the blood flow region corresponds to the target blood vessel, by analyzing the blood flow information generated by the blood flow image generation unit. 1. An ultrasound diagnostic apparatus which identifies a blood vessel of interest of a subject based on reflected ultrasound waves obtained , using an ultrasound probe , from the subject , the ultrasound diagnostic apparatus comprising:a tomographic image generation unit configured to generate a tomographic image of the subject, based on the reflected ultrasound waves;a blood flow information generation unit configured to generate blood flow information indicating a blood flow region of the subject in the tomographic image, based on the reflected ultrasound waves; anda blood flow region determination unit configured to (i) extract a blood flow point indicating a representative point of the blood flow region, (ii) extract, as a group of blood flow regions, a plurality of the blood flow points having a same feature, and (iii) determine, on a group of blood flow regions basis, whether or not the blood flow region corresponds to the blood vessel of interest, by analyzing the blood flow information generated by the blood flow information generation unit.2. The ultrasound diagnostic apparatus according to claim 1 ,wherein the blood flow region determination unit is configured to perform the determination by analyzing, as the ...

NONINVASIVE SYSTEMS FOR AORTIC ANEURYSM EVALUATION

Hardware and software methodology are described for non-invasive approaches to aortic aneurysm evaluation using ultrasound, microwave, and/or other radiofrequency (RF) techniques. Embodiments can be used to diagnose AAA and other aortic aneurysm conditions by non-invasive measurement and computation of displacement-based wave intensity (DWI) and/or displacement-based reflected wave intensity (DRWI) along the aorta and by comparison of the results to baseline data for a given patent or a population sample catalogue. Deviation of DWI and/or DRWI from a normal condition can be used to assess the severity of the AAA or other aortic aneurysm and any associated rupture risk. 1. A system for non-invasive aortic aneurysm evaluation of a subject , comprising:at least one sensor, the at least one sensor adapted to produce a first data set that correlates to distension of a blood vessel and to produce a second data set that correlates to blood velocity within the vessel; andat least one processor, the at least one processor configured to convert the first data set to a measurement of blood vessel distention and the second data set to a measurement of blood velocity, to calculate from the distention and velocity measurements at least one of a displacement-based wave intensity (DWI) and a displacement-based reflected wave intensity (DRWI), and to compare at least one of the DWI and the DRWI to baseline data.2. The system of claim 1 , wherein the baseline data is from the subject.3. The system of claim 1 , wherein the baseline data is from a sample catalogue.4. The system of claim 1 , wherein the processor is further configured to output an indication of a presence of an aneurysm.5. The system of claim 4 , wherein the processor is further configured to output an indication of a severity of an aneurysm.6. The system of claim 4 , wherein the processor is further configured to output an indication of a risk of aneurysm rupture.7. The system of claim 1 , configured to calculate both ...

Methods and apparatus for multibeam doppler ultrasound display

There is provided a method for monitoring fluid flow, the method including: acquiring a pulse-echo signal from each of a plurality of spatially adjacent regions; for each of the pulse echo signals, forming a velocity spectrum; combining the plurality of velocity spectra into a composite data set which contains both spatial data and velocity data; and displaying the composite data set so as to present at least one aspect of the velocity data with at least one aspect of the spatial data. By combining both spatial and spectral velocity data into a composite data set and displaying aspects of the spatial data with aspects of the velocity data, the clinician can easily gauge in a quantitative or semi-quantitative way, both the size and velocities of fluid flows. In particular, the technique is useful for assessing valvular regurgitation jets in cardiac blood flows.

NON-INVASIVE CONTINUOUS DOPPLER MONITORING DEVICE FOR ARTERIAL BLOOD FLOW TO DISTAL BODY PARTS

A Doppler sensor for non-invasive continuous Doppler monitoring for arterial blood flow to a distal body part of a patient that employs a Doppler transducer holder for placement at the distal body part of the patient. The holder is adapted to allow the sensor to be inserted and removed, enabling a sterile sensor for each new use. The holder may be disposable after each use, may be provided with a cover for disposal of the cover after each use and re-use of the holder, and the sensor may be provided with a cover for sterile placement against the patient's body. 1. A sensor module for non-invasive continuous Doppler monitoring for arterial blood flow to a distal body part of a patient , comprising: ["at least one concave side portion adapted for conforming to a user's hand, and", 'a sensor receiving portion for removable placement of a sensor therein for use with a Doppler transducer., 'a holder body having,'}2. The sensor module according to claim 1 , further comprising a substantially flat front portion adapted for placement against a user's finger.3. The sensor module according to claim 1 , further comprising a barrier shield for placement over at least a portion of the holder body for providing a sterile barrier between the holder body and a patient's body.4. The sensor module according to claim 1 , further comprising a second concave side portion on a side of the holder body opposite said at least one concave side portion.5. The sensor module according to claim 1 , further comprising the sensor adapted for removably placing in the holder body for holding thereof by the holder body claim 1 , and a sanitary cover member for providing a sterile barrier between the sensor and a patient's body.6. The sensor module according to claim 1 , wherein a patient-side face of said holder body is substantially flat.7. The sensor module according to claim 1 , wherein a patient-side face of said holder body is contoured to conform to a shape of a patient's body.8. The sensor ...

METHOD AND APPARATUS FOR GUIDING SCAN LINE BY USING COLOR DOPPLER IMAGE

Provided are a method and apparatus for guiding a scan line. The method includes: detecting a bloodstream region indicating a flow of blood from a color Doppler image; determining a central axis of the bloodstream region; measuring an angle between the central axis and a scan line used to obtain the color Doppler image; and displaying the angle on a screen. 1. A method of guiding a scan line by using a color Doppler image , the method comprising:detecting a bloodstream region indicating a flow of blood from the color Doppler image;determining a central axis of the bloodstream region;measuring an angle between the central axis and the scan line used to obtain the color Doppler image; anddisplaying the angle on a screen.2. The method of claim 1 , wherein the measuring of the angle comprises:displaying the central axis and the scan line on the screen; andmeasuring the angle between the central axis and the scan line on the screen.3. The method of claim 1 , wherein the displaying of the angle on the screen comprises changing a color of the angle displayed on the screen according to whether the angle is within a predetermined range.4. The method of claim 1 , wherein the determining of the central axis comprises determining as the central axis a straight line whose length is the greatest from among straight lines obtained by connecting arbitrary points included in the bloodstream region.5. The method of claim 1 , wherein the determining of the central axis comprises determining as the central axis a straight line whose length included in the bloodstream region is the greatest from among a plurality of straight lines passing through a central point of the bloodstream region.6. The method of claim 1 , wherein the detecting of the bloodstream region comprises detecting the bloodstream region by using color information of one or more color regions included in the color Doppler image.7. The method of claim 6 , wherein the detecting of the bloodstream region comprises:obtaining ...

MEDICAL DOPPLER ULTRASOUND SYSTEM FOR LOCATING AND TRACKING BLOOD FLOW

Systems and methods for processing echo signals in a Doppler ultrasound system from a region of interest. An ultrasound beam is electronically steered to deliver ultrasound to and receive echo signals from a plurality of sample locations in the region of interest. The echo signals for each sample location are processed to extract Doppler shift signals and Doppler shift data representing the Doppler shift signals are generated. The Doppler shift data accumulated for the sample locations can be used to detect the presence of blood flow in the region of interest, and identify the location in the region of interest at which the presence of blood flow is detected. The blood flow can be tracked by updating the location of the detected blood flow in the region of interest. The blood flow can be further monitored by combining the locating and tracking functionality with an m-mode ultrasound image. 1. A Doppler ultrasound system , comprising:a probe having a multi-element transducer including a plurality of transducer elements;a transmitter circuit operably coupled to the transducer elements of the transducer and configured to generate respective drive signals for driving the transducer elements to deliver an ultrasound beam;a receiver circuit operably coupled to the transducer elements of the transducer and configured to receive echo signals detected by the respective transducer elements and generate in response thereto echo data representing the echo signals; anda processor operably coupled to the transmitter and receiver circuits and configured to control the transmit circuit in generating drive signals for the transducer elements and configured to process the echo data from the receiver circuit and extract therefrom Doppler shift signals represented by Doppler shift data, the processor further configured to process the Doppler shift data to locate blood flow in a region of interest and automatically calculate data representing a vector identifying the location of the ...

SCANNING TO IDENTIFY AND DELIMIT STATIONARY FLUID POOLS

Dynamically identifying a stationary body of fluid () within a test volume by scanning within the volume can entail using a first part of a pulse sequence to acoustically interrogate a region within the volume to detect pre-existing movement () and, via a separate acoustic interrogation constituting the second part of the pulse sequence, acoustically interrogating the region to distinguish solid from fluid. The scanning is with both interrogations as a unit, so as to span the volume with the interrogations. The body is identified, dynamically based on an outcome of the interrogations. The scanning may span, for the identifying, a current field of view (), including normal tissue, within an imaging subject. The procedure, from scanning to identifying, may be performed automatically and without need for user intervention, although the user can optionally change the field of view to further search for stationary fluid. 1. An acoustic device configured for dynamically identifying a stationary body of fluid within a test volume by scanning within said volume , said device comprising: acoustically interrogating a region within said volume to detect pre-existing movement;', 'via a separate acoustic interrogation, acoustically interrogating said region to distinguish solid from fluid, said scanning comprising scanning, as a unit, both interrogations, so as to span said volume with said interrogations; and,', 'dynamically based on an outcome of said interrogations, identifying said body, said interrogator configured for generating, and transmitting, a sequence of pulses such that said sequence comprises:, 'an acoustic interrogator) configured fora) a first part for the interrogation to detect pre-existing movement; andb) a second part for the interrogation to distinguish solid from fluid, said first part occurring, in said sequence, prior to said second part, characterized in that said second part commencing a time period after completion of issuance of said first part, said ...

Method and Apparatus for Monitoring Cardiac Output

A new method of measuring the cardiac output is disclosed. The new method uses an ultrasound emitter and one or more receivers placed in the superior vena cava just above the right atrium of the heart so that the ultrasound apparatus can transmit through the wall of the superior vena cava and the juxtaposed wall of the aorta at this location. By measuring the velocity of the blood by its back-scattered Doppler shift, the cardiac output can be determined. The volume of blood flow can also be determined by measuring the diameter of the aorta.

ULTRASOUND IMAGING SYSTEM WITH PIXEL ORIENTED PROCESSING

An ultrasound imaging system with pixel oriented processing is provided in which an acoustic signal is generated, echoes from the acoustic signal are received at a plurality of receiving elements to obtain echo signals that are then stored, a given pixel is mapped into a region of the stored signals, the mapped region of the stored echo signals is organized into array for the given pixel after which the array is processed to generate a signal response for the given pixel to obtain acoustic information for the given pixel. The system can be implemented entirely on plug-in cards for a commercial PC motherboard. The system and method can be implemented for pixel-oriented or voxel-oriented image processing and display, eliminating intermediate data computations and enabling extensive use of software processing methods. Advantages include improved acquisition of signal dynamic range, flexible acquisition modes for high frame rate 2D, 3D, and Doppler blood flow imaging. 154.-. (canceled)55. A method , comprising:generating an acoustic pulse with an ultrasound transducer and transmitting the acoustic pulse from the ultrasound transducer into an adjacent physical medium;receiving at each of a plurality of receiving elements of the ultrasound transducer at least one echo of the acoustic pulse from the physical medium in response to the transmitting the acoustic pulse into the physical medium;obtaining, by one or more processing units communicatively coupled to the ultrasound transducer and from each of the plurality of receiving elements, an echo signal based at least in part on the received at least one echo;generating, by the one or more processing units, a separate respective data set array comprised of the obtained echo signals from each of the plurality of receiving elements of the ultrasound transducer, wherein each column of the respective data set array consists of obtained echo signals from a corresponding one of the plurality of receiving elements;mapping, by one ...

ULTRASOUND DIAGNOSIS APPARATUS AND CONTROLLING METHOD

An ultrasound diagnosis apparatus according to an embodiment includes index image data generating circuitry and controlling circuitry. The index image data generating circuitry is configured to generate index image data indicating a relative positional relationship between extending direction information and information indicating a scanned position by an ultrasound wave transmitted from an ultrasound probe, wherein the extending direction information indicates a blood vessel extending direction and is generated on a basis of volume data representing a three-dimensional region that includes at least a part of the blood vessel region of a subject. The controlling circuitry is configured to cause a monitor to display the index image data. 1. An ultrasound diagnosis apparatus comprising:index image data generating circuitry configured to generate index image data indicating a relative positional relationship between extending direction information and information indicating a scanned position by an ultrasound wave transmitted from an ultrasound probe, wherein the extending direction information indicates a blood vessel extending direction and is generated on a basis of volume data representing a three-dimensional region that includes at least a part of the blood vessel region of a subject; andcontrolling circuitry configured to cause a monitor to display the index image data.2. The ultrasound diagnosis apparatus according to comprising: image data generating circuitry configured to generate the volume data by performing a scan using the ultrasound wave transmitted from the ultrasound probe claim 1 , whereinthe index image data generating circuitry sequentially generates pieces of the extending direction information each of which indicates a blood vessel extending direction in a three-dimensional space on a basis of pieces of the volume data that are sequentially generated by the image data generating circuitry and sequentially generates pieces of the index image data ...

ACOUSTIC WAVE IMAGE DISPLAY DEVICE AND METHOD

A first acoustic wave image is displayed in a first display color, and a second acoustic wave image is displayed in a second display color different from the first display color. A group of first menu icons for designating a process to be performed on the first acoustic wave image and a group of second menu icons for designating a process to be performed on the second acoustic wave image are displayed on menu icon display means. The group of first menu icons is displayed in the first display color, and the group of second menu icons is displayed in the second display color. 1. An acoustic wave image display device in a system for displaying a first acoustic wave image and a second acoustic wave image on image display means , the first acoustic wave image being generated on the basis of detected signals of photoacoustic waves generated from within a subject which has received light emitted to the subject , the second acoustic wave image being generated on the basis of detected signals of reflected acoustic waves , which are acoustic waves transmitted to the subject and reflected within the subject , the acoustic wave image display device comprising:an image display control unit that causes the first acoustic wave image to be displayed on the image display means in a first display color and causes the second acoustic wave image to be displayed on the image display means in a second display color different from the first display color;menu icon display means for displaying a first menu icon group for designating a process to be performed on the first acoustic wave image and a second menu icon group for designating a process to be performed on the second acoustic wave image; anda menu icon display control unit that causes the first menu icon group to be displayed on the menu icon display means in the first display color and causes the second menu icon group to be displayed on the menu icon display means in the second display color.2. The acoustic wave image display ...

Spectral Doppler detection

In spectral pulsed wave Doppler imaging, spatial variance in signal and/or noise are reduced by combination of multiple spectra with at least partially decorrelated noise. Rather than requiring oversampling in time, the multiple spectra for one Doppler gate are created from different spatial signals. The Doppler gate is divided into sub-gates, the beamformed sample locations in the Doppler gate are grouped into two or more groups using any selection criterion, and/or different receive apertures are used to simultaneously sample the Doppler gate. Spectra for the gate are estimated from the samples with the different spatial content and then combined. 1. A method for spectral Doppler imaging , the method comprising:acquiring, with an ultrasound system, first and second sets of samples representing response from a range gate with first and second spatial content, respectively, the first spatial content different than the second spatial content;estimating, by a Doppler estimator, first and second spectra for the range gate from the samples of the first and second sets, respectively;combining information for the two or more spectra into a combined spectrum; anddisplaying a spectral Doppler strip as a function of the combined spectrum.2. The method of wherein acquiring comprises transmitting with a pulse repetition frequency and acquiring samples for each of the sets in response to each repetition.3. The method of wherein acquiring comprises acquiring the first set of samples from a first sub-gate covering just a first part of the range gate and acquiring the second set of samples from a second sub-gate covering just a second part of the range gate claim 1 , the first and second sub-gates defining the first and second spatial content.4. The method of wherein acquiring comprises acquiring with the first and second sub-gates overlapping but covering different ranges of depths within the range gate.5. The method of wherein acquiring comprises acquiring with the first and ...

METHOD AND SYSTEM FOR IMAGE PROCESSING TO DETERMINE BLOOD FLOW

Embodiments include a system for determining cardiovascular information for a patient. The system may include at least one computer system configured to receive patient-specific data regarding a geometry of the patient's heart, and create a three-dimensional model representing at least a portion of the patient's heart based on the patient-specific data. The at least one computer system may be further configured to create a physics-based model relating to a blood flow characteristic of the patient's heart and determine a fractional flow reserve within the patient's heart based on the three-dimensional model and the physics-based model. 1184-. (canceled)185. A method for processing images to determine cardiovascular information , comprising the steps of:receiving image data including a plurality of coronary arteries originating from an aorta;processing the image data to generate three-dimensional shape models of the coronary arteries;simulating a blood flow for the generated three-dimensional shape models of the coronary arteries; anddetermining a fractional flow reserve (FFR) of the coronary arteries based on a blood flow simulation result, wherein in the step of simulating the blood flow, a computational fluid dynamics model is applied to the three-dimensional shape models of the coronary arteries, a lumped parameter model is combined with the computational fluid dynamics model, and a simplified coronary artery circulation model including coronary arteries, capillaries of the coronary arteries and coronary veins is used as the lumped parameter model.186. The method of claim 185 , wherein claim 185 , when simulating the blood flow claim 185 , when applying the computational fluid dynamics model to the three-dimensional shape models of the coronary arteries claim 185 , using an aorta blood pressure pattern as an inlet boundary condition.187. The method of claim 185 , wherein simulating the blood flow comprises determining lengths of centerlines of the three- ...

ULTRASOUND DIAGNOSIS APPARATUS AND OPERATING METHOD THEREOF

An ultrasound diagnosis apparatus and a method thereof are provided. The ultrasound diagnosis apparatus includes: a data obtainer configured to obtain volume data of an object; a display configured to display a reference cross-section of the object extracted from the volume data; a user input unit configured to receive a user input selecting a reference object included in the displayed reference cross-section; and an image processor configured to normalize the volume data by using location information of the reference object, and to extract a coronal plane of the object based on information of at least one anatomical landmark included in the normalized volume data, and the display is further configured to display the extracted coronal plane. 1. An ultrasound diagnosis apparatus comprising:a data obtainer configured to obtain volume data of an object;a display configured to display a reference cross-section of the object extracted from the volume data;a user input unit configured to receive a user input selecting a reference object included in the displayed reference cross-section; andan image processor configured to normalize the volume data by using location information of the reference object, and to extract a coronal plane of the object based on information of at least one anatomical landmark included in the normalized volume data,wherein the display is further configured to display the extracted coronal plane.2. The apparatus of claim 1 , wherein the at least one anatomical landmark comprises an object allowing standard cross-sections of the object to be identified.3. The apparatus of claim 1 , wherein the image processor detects the at least one anatomical landmark based on a predetermined reference value inside a prediction region of the normalized volume data claim 1 , and extracts the coronal plane comprising the detected at least one anatomical landmark claim 1 , andthe information of the at least one anatomical landmark comprises information of at least ...

SYSTEM AND METHOD FOR DIAGNOSING A FLUID STATUS OF A PATIENT

A system and method for diagnosing a fluid status of a patient includes non-invasively determining a left ventricular pressure of blood within a left ventricle of a heart of the patient. The left ventricular pressure is compared to a predefined pressure value to diagnose the fluid status. 1. A method of diagnosing a fluid status of a patient , the method comprising:non-invasively determining a left ventricular pressure of blood within a left ventricle of a heart of the patient; andcomparing the left ventricular pressure to a predefined pressure value to diagnose the fluid status.2. The method according to claim 1 , wherein the diagnosis of the fluid status is used to determine the health of the patient with respect to at least one of fluid amounts and fluid distributions in the body.3. The method according to claim 1 , wherein the diagnosis of the fluid status is used to identify the existence of at least one of dehydration claim 1 , sepsis claim 1 , pulmonary edema claim 1 , low blood volume claim 1 , and shifts in intravascular fluid volumes.4. The method according to claim 1 , wherein the diagnosis of the fluid status is used to determine that no fluid-related problems exist.5. The method according to claim 1 , wherein non-invasively determining a left ventricular pressure further comprises non-invasively measuring a plurality of cardiac parameters of the patient claim 1 , including a stroke volume of the left ventricle claim 1 , a mitral valve area claim 1 , and a left ventricular diastolic filling time.6. The method according to claim 5 , wherein the cardiac parameters are measured using one of an echocardiogram apparatus claim 5 , a magnetic resonance imaging (MRI) apparatus claim 5 , and a computer aided tomography (CAT) apparatus.10. A fluid status diagnostic system comprising:a sensing unit configured to non-invasively measure a plurality of cardiac parameters associated with a left ventricle of a patient, the cardiac parameters including a mitral valve ...

VELOCITY ESTIMATION FOR VECTOR FLOW IMAGING (VFI) IN ULTRASOUND

An ultrasound imaging system includes a transducer array, with an array of transducer elements that transmits an ultrasound signal and receives a set of echoes generated in response to the ultrasound signal traversing a flowing structure. The ultrasound imaging system further includes a beamformer that beamforms the set of echoes, generating a beamformed signal. The ultrasound imaging system further includes a pre-processor that performs basebanding, averaging and decimation of the beamformed signal and determines an autocorrelation of the basebanded, averaged and decimated beamformed signal. The ultrasound imaging system further includes a velocity processor that generates an axial velocity component signal and a lateral velocity component signal based on the autocorrelation. The axial and lateral velocity components indicate a direction and a speed of the flowing structure in the field of view. 1. A method , comprising:receiving a set of echoes generated in response to an ultrasound signal traversing a flowing structure in a field of view;beamforming the set of echoes, generating a beamformed signal;basebanding, averaging and decimating the beamformed signal;determining, via a processor, an autocorrelation of the basebanded, averaged and decimated beamformed signal; andgenerating an axial velocity component signal and a lateral velocity component signal based on the autocorrelation,wherein the axial and lateral velocity components indicate a direction and a speed of the flowing structure in the field of view.2. The method of claim 1 , wherein decimating the beamformed signal includes decimating the signal by a factor having a value in a range of two to eight.3. The method of claim 1 , wherein the basebanding claim 1 , averaging and decimating operations are performed by circuitry different form the circuitry determining the autocorrelation.4. The method of claim 1 , wherein the basebanding claim 1 , averaging claim 1 , decimating claim 1 , autocorrelations ...

System and Method for Measuring Fluidics in Arteries

An apparatus for performing measurements in an artery includes a Doppler catheter, comprising a Doppler transducer and a wire connected to the Doppler transducer; and an elongated catheter body having a conduit therein for housing the wire of the Doppler catheter. The body has a proximal end and a distal end; wherein the wire is movable in the conduit relative to the catheter body so that the Doppler transducer and the wire are capable of being threaded into said conduit at the proximal end after the distal end of the catheter has been inserted into the artery, until the Doppler transducer emerges outside the conduit at the distal end of said body for performing ultrasound measurements in the artery. Another embodiment employs at least an additional side transducer for measuring the cross-sectional dimension of the artery useful for computing blood flow. 1. An apparatus for performing measurements in an artery , comprising:a Doppler catheter, including a Doppler transducer and a wire connected to the Doppler transducer, said Doppler catheter further comprising a first connector and a second connector, the first connector containing the wire; and{'sub': 't', 'an elongated catheter body having a conduit therein for housing the wire of he Doppler catheter, said body having a proximal end and a distal end;'}a third connector attached to the catheter body, said third connector shaped to mate with the first connector to form a stable connection between the catheter body and the Doppler catheter;wherein said wire and Doppler transducer are is movable in the conduit through to the stable connection between the proximal end and the distal end of the catheter body after the stable connection has been formed so that the Doppler transducer and the wire are capable of being threaded into said conduit at the proximal end through the stable connection after the distal end of the catheter has been inserted into the artery, until the Doppler transducer emerges outside the conduit at ...

PHYSIOLOGICAL MONITORING FOR ULTRASOUND THERAPY

In some examples, a system includes a flexible ultrasound device configured to be attached to an external surface of a patient proximate to an organ of the patient to deliver ultrasound configured to modulate nerve tissue of the patient at the organ. The system further comprises one or more sensors configured to sense one or more physiological parameters indicative of at least one of a symptom treatable by, or a side effect of, the neuromodulation, and processing circuitry configured to control the delivery of ultrasound during an ambulatory period of the patient, and monitor the least one of the symptom or the side effect during the ambulatory period, based on the one or more physiological parameters. The organ may be the spleen and the ultrasound may at least one of regulate the autoimmune system of the patient, or reduce an inflammation response of the patient. 1. A system comprising: a flexible interconnect element;', 'a plurality of ultrasound transducers connected to the flexible interconnect element;', 'one or more power sources connected to the flexible interconnect element; and', 'signal generation circuitry powered by the one or more power sources and connected to the flexible interconnect element, wherein the signal generation circuitry is configured to generate a signal that drives one or more of the ultrasound transducers to deliver an ultrasound signal to the organ, the ultrasound signal configured to modulate nerve tissue of the patient at the organ;, 'a flexible ultrasound device configured to be attached to an external surface of a patient proximate to an organ of the patient, wherein the flexible ultrasound device comprisesone or more sensors configured to sense one or more physiological parameters of the patient, the one or more physiological parameters indicative of at least one of a symptom treatable by the modulation of the nerve tissue of the patient at the organ, or a side effect of the modulation of the nerve tissue of the patient at the ...

BLOOD-VESSEL RECOGNITION BLOOD-FLOW MEASUREMENT METHOD

A blood-vessel recognition blood-flow measurement method including: obtaining a real-time Doppler spectrum by performing a Fourier transform on a temporal waveform of the intensity of scattered light of laser light in a living body; calculating a normalized real-time Doppler spectrum and a normalized zero spectrum; calculating a region spectrum from a subtracted spectrum that is calculated through subtraction of these calculated spectra; calculating a PS reference spectrum by subtracting, from the region spectrum, the maximum value of the region spectrum in a predetermined PS reference region; calculating an average frequency on the basis of a computational spectrum that is obtained by replacing an element of which the PS reference spectrum is negative with zero; and determining a blood flow velocity by comparing the calculated average frequency with a predetermined threshold. 1. A blood-vessel recognition blood-flow measurement method comprising:a step of obtaining a real-time Doppler spectrum by performing a Fourier transform on a temporal waveform of an intensity of scattered light produced when laser light is radiated onto a living body;a step of calculating a normalized real-time Doppler spectrum by normalizing the real-time Doppler spectrum by using an average value of the real-time Doppler spectrum in a predetermined normalized region;a step of calculating a normalized zero spectrum by normalizing a zero spectrum measured when laser light is radiated in a state in which a blood flow does not exist, by using an average value of the zero spectrum in the normalized region;a step of calculating a subtracted spectrum by subtracting the normalized zero spectrum from the normalized real-time Doppler spectrum;a step of calculating a region spectrum by extracting, from the subtracted spectrum, a region for integration by using a predetermined integration region;a step of calculating a PS reference spectrum by subtracting, from the region spectrum, the maximum value of ...

FLOW IMAGING PROCESSING METHOD AND ULTRASOUND IMAGING DEVICE

Embodiments of the present disclosure provide a flow imaging processing method, which may include determining flow imaging parameters, where the flow imaging parameters include a sound speed for calculation, a center frequency of the transmitting pulse for exciting a probe and a imaging depth; obtaining a velocity measurement range; and determining the first target number of the different transmit angles according to the sound speed for calculation, the center frequency of the transmitting pulse, the imaging depth and the velocity measurement range. The embodiments of the present disclosure also provide an ultrasound imaging device. 1. A processing method for flow imaging , comprising:determining flow imaging parameters, wherein the flow imaging parameters comprises a sound speed for calculation, a center frequency of a transmitting pulse for exciting a probe and an imaging depth;obtaining a velocity measurement range; anddetermining a first target number of different transmitting angles according to the sound speed for calculation, the center frequency of the transmitting pulse for exciting the probe, the imaging depth and the velocity measurement range.2. The method of claim 1 , after determining the first target number of the different transmitting angles according to the sound speed for calculation claim 1 , the center frequency of the transmitting pulse for exciting the probe claim 1 , the imaging depth claim 1 , and the velocity measurement range claim 1 , further comprising:obtaining a preset total number of angles; anddetermining a second target number of different receiving angles according to the preset total number of the angles and the first target number of the different transmitting angles.3. The method of claim 2 , further comprising:transmitting ultrasound waves in the first target number of different transmitting angles and receiving ultrasound echoes in the second target number of different receiving angles to obtain echo data; andgenerating a flow ...

WORKFLOW ASSISTANCE FOR MEDICAL DOPPLER ULTRASOUND EVALUATION

Systems, devices, and methods are provided to provide workflow assistance to an operator during a medical imaging procedure, such as a Doppler ultrasound evaluation of a body vessel of a subject. A sensor such as a gyroscope (128) may be integrated in an external ultrasound probe (102). Workflow assistance may be provided to position the ultrasound probe (102) to make accurate flow measurements of fluid within the vessel, such as by coupling system color flow information with gyroscope angles. The workflow assistance may also assist a user in identifying a perpendicular orientation of the ultrasound to be used as a reference in making Doppler measurements. The system may also be used to create a vessel map. 1. An ultrasound imaging system , comprising:an imaging probe configured to be positioned on a body of a subject, the imaging probe comprising:an ultrasound transducer array configured to obtain imaging data associated with blood flowing through a blood vessel within the body of the subject;a processor provided at the imaging probe in communication with the ultrasound transducer array, the processor configured to:receive the imaging data from the ultrasound transducer array while the imaging probe is disposed at a plurality of angular positions with respect to the blood vessel of the subject;determine when the imaging probe is positioned perpendicularly with respect to the blood vessel based on the received imaging data; andthereafter output, to a first display device in communication with the processor, a visual representation of an angular position of the imaging probe with respect to the blood vessel.2. The ultrasound imaging system of claim 1 , wherein the visual representation of the angular position comprises a numerical value of the angular position.3. The ultrasound imaging system of claim 1 , wherein the imaging probe comprises a housing claim 1 , and wherein the first display device is coupled to the housing.4. The ultrasound imaging system of claim 3 , ...

MEDICAL DEVICE COMPRISING SENSOR ARRAY AND SYSTEM FOR MEASUREMENTS

A medical device () for insertion into a patient is disclosed. The medical device () comprising an elongate body (), the medical device terminating in a distal portion and further comprising a carrier () carrying an annular sensor arrangement (), wherein the annular sensor arrangement is attached on a forward facing surface of the elongate body (). Also disclosed is a system () including such a medical device (). 1. Interventional medical device , comprising:an elongate body comprising a distal edge delimiting a distal facing surface and a side facing surface of the elongate body;a carrier comprising a first side and an opposite second side, wherein the distal portion of the carrier comprises an array of separate elongate structures, each comprising at least a sensor element with active surface oriented toward the first side of the carrier;wherein the carrier is configured for electrical conduction of signals from a proximal portion of the carrier to the sensor elements;wherein the second side of the carrier is attached to the elongate body;wherein the distal portion of the carrier comprises a flexible segment proximal to the array of elongate structures, the array of elongate structures comprising the sensors are folded over the distal edge of the elongate body and are attached to distal facing surface.2. The device of claim 1 , wherein the elongate body comprises a through lumen.3. The device of claim 1 , wherein the sensor elements form an annular array on the distal facing surface of the elongate body.4. The device of claim 1 , wherein the shape of the elongate structures is tapered inwardly toward the distal end of the carrier.5. The device of claim 1 , wherein the flexible segment is a flexible bridge extending transversal to the longitudinal orientation of the separate elongate structures.6. The device of claim 1 , wherein the distal facing surface of the device is slanted relative to the longitudinal axis of the device.7. The device of claim 1 , wherein the ...

Medical image diagnostic apparatus, medical image processing apparatus, and medical image processing method

According to one embodiment, a medical image diagnostic apparatus includes processing circuitry. The processing circuitry configured to acquire first volume data and second volume data relating to a subject, set a first region of interest for the first volume data, set a second region of interest for the second volume data independently from setting of the first region of interest, perform a cropping process on the first volume data and the second volume data based on information representing the first region of interest and the second region of interest, and generate display image data based on the first volume data and the second volume data that have been subjected to the cropping process.

Injectable Hemodynamic Monitoring Devices, Systems and Methods

An implantable sensor system using one or more sensor implants comprised of micro-electrical mechanical system (MEMS) sensors for the accurate and continuous measurement of physiological hemodynamic signals such as diastolic and systolic blood pressure. Sensor implants are configured to be subcutaneously injected to a placement site adjacent a blood vessel. In some embodiments, sensors comprise micromachined ultrasonic transducers. 1. A hemodynamic monitoring method , comprising:subcutaneously placing a sensor implant in a patient in tissue adjacent a target blood vessel;generating a data stream with said sensor implant from which pulse wave velocity of the target blood vessel during a sensing period can be determined; andtransmitting said data stream to a computing device configured to determine pulse wave velocity for the target blood vessel and blood pressure for the patient using said data stream.2. The method of claim 1 , wherein said generating a data stream comprises:generating and receiving pulse echoes representing inner and outer walls of the target blood vessel at first and second sensing locations with first and second ultrasound sensors;detecting changes in target blood vessel diameter at the first and second sensing locations based on said pulse echoes; andmeasuring a time between detecting of a change in target blood vessel diameter at the first sensing location and at the second sensing location.3. The method of claim 2 , further comprising:transmitting an initial patient diastolic blood pressure to the computing device;determining, with the computing device, the pulse wave velocity of the target blood vessel during the sensing period based on the transmitted data stream;determining, with the computing device, the patient blood pressure during the sensing period using the initial patient diastolic blood pressure, determined pulse wave velocity and inner and outer wall diameters for the target blood vessel; andtransmitting at least the patient blood ...

ULTRASOUND DIAGNOSTIC APPARATUS, CONTROL METHOD OF ULTRASOUND DIAGNOSTIC APPARATUS, AND PROCESSOR FOR ULTRASOUND DIAGNOSTIC APPARATUS

An ultrasound diagnostic apparatus () includes a time phase search period specifying unit () that specifies a time phase search period in each heartbeat period on the basis of Doppler data; and a frame specifying unit () that specifies at least one of B-mode data of a frame with a maximum diameter of a blood vessel or B-mode data of a frame with a minimum diameter of the blood vessel in each heartbeat period by analyzing the B-mode data of a plurality of frames in the time phase search period specified by the time phase search period specifying unit (). 1. An ultrasound diagnostic apparatus in which B-mode data and Doppler data of a region including a blood vessel of a subject are continuously acquired for a predetermined period , the ultrasound diagnostic apparatus comprising:a processor configured tospecify a time phase search period in each heartbeat period on the basis of the Doppler data, andspecify at least one of the B-mode data of a frame with a maximum diameter of the blood vessel or the B-mode data of a frame with a minimum diameter of the blood vessel in each heartbeat period by analyzing the B-mode data of a plurality of frames in the time phase search period.2. The ultrasound diagnostic apparatus according to claim 1 ,wherein the processor is further configured to calculate at least one of a maximum diameter or a minimum diameter of the blood vessel on the basis of at least one of the B-mode data of the frame with the maximum diameter of the blood vessel or the B-mode data of the frame with the minimum diameter of the blood vessel.3. The ultrasound diagnostic apparatus according to claim 2 ,wherein the processor is further configured tocalculate a cross-sectional area of the blood vessel using at least one of the maximum diameter or the minimum diameter of the blood vessel,acquire the Doppler data in each heartbeat period,calculate a blood flow velocity on the basis of the Doppler data acquired, andmeasure a blood flow rate on the basis of the cross- ...

INTUITIVE ULTRASONIC IMAGING SYSTEM AND RELATED METHOD THEREOF

A hand held ultrasonic instrument () is provided in a portable unit that performs C-Mode imaging and collects 3D image data. In a preferred embodiment a transducer array (), display unit (), beamformer (), power system, and image processor are integrated in one enclosure weighing less than three pounds. In operation, the portable unit is scanned across a target and the displayed image is conveniently presented to the operator whereby the displayed image corresponds exactly to the target, or a scaled fashion if desired. 1. (canceled)2. An ultrasonic imaging system for producing images of a target , the system comprising:a housing;a two-dimensional transducer array disposed on the housing;a display unit disposed on the housing, the display unit defining a planar region, wherein the transducer array and the display unit are integrated with the housing, wherein the display unit is configured to display a three-dimensional image;a beamformer disposed within the housing, the beamformer in communication with the two-dimensional transducer array, and configured to generate focused echo data obtained from adjacent planes parallel to a surface of the transducer array; and receive focused echo data obtained from the adjacent planes; and', 'generate a three-dimensional image of an image region located below the plane of the display, the three-dimensional image generated using adjacent image planes located at different depths, and using envelope-detected images from the adjacent planes combined to yield the three-dimensional image., 'an image processor disposed within the housing, the image processor configured to3. The system of claim 2 , further comprising a control to select the depth of the three-dimensional image region.4. The system of claim 2 , wherein the image processor is configured to generate a three-dimensional image for display on the display unit scaled so that dimensions of the three-dimensional image presented to the user include actual dimensions of the target ...

ULTRASOUND SYSTEM AND METHOD FOR PROVIDING OBJECT INFORMATION

Disclosed are an ultrasound system and method for determining an object, for example, an artery or a vein, and provide object information corresponding to a position of the object. The ultrasound system includes: an ultrasound probe that transmits an ultrasound signal to a body comprising an object, and receives an ultrasound echo signal reflected from the body to generate a reception signal, an ultrasound data acquiring unit that acquires ultrasound data corresponding to the object in the body by using the reception signal, a processing unit that generates Doppler data by using the ultrasound data, analyzes the Doppler data to detect the object, and generates object information corresponding to a position of the detected object, and an object information providing unit that outputs the object information. 1. An ultrasound system comprising:an ultrasound probe that transmits an ultrasound signal to a body comprising an object and receives an ultrasound echo signal reflected from the body to generate a reception signal;an ultrasound data acquiring unit that acquires ultrasound data corresponding to the object by using the reception signal;a processing unit that generates Doppler data by using the ultrasound data, analyzes the Doppler data to detect the object, and generates object information corresponding to a position of the detected object; andan object information providing unit that outputs the object information.2. The ultrasound system of claim 1 , wherein the object is at least one of an artery and a vein.3. The ultrasound system of claim 2 , wherein the Doppler data comprises at least one of a velocity corresponding to a motion of the object claim 2 , stiffness corresponding to the motion of the object claim 2 , and a size of the object.4. The ultrasound system of claim 3 , wherein the processing unit accumulates the Doppler data on a time axis claim 3 , calculates an average value of the accumulated Doppler data claim 3 , and compares the calculated average ...

Method and system for ultrasonic fluid spectral doppler imaging

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis.

METHOD AND SYSTEM FOR ULTRASONIC FLUID SPECTRAL DOPPLER IMAGING

A method and system for ultrasonic fluid spectral Doppler imaging are disclosed. The system comprises: a transmission circuit for transmitting an ultrasonic beam to a detection object; a receiving circuit and a beam synthesis module for receiving an echo of the ultrasonic beam and obtaining an ultrasonic echo signal; an image processing module for obtaining an ultrasonic fluid flow state image of a region of interest in the detection object according to the ultrasonic echo signal, identifying a sampling position in the region of interest, respectively obtaining a Doppler spectrogram corresponding to each sampling position according to the ultrasonic echo signal, and generating position displaying marks for characterizing the sampling positions; and a display for displaying the position displaying marks in the ultrasonic fluid flow state image, and displaying the obtained Doppler spectrogram. The system may simultaneously display spectra of multiple locations on a same time axis. 1. An ultrasonic flow spectral Doppler imaging method , comprising:transmitting an ultrasonic beam to an examination object;receiving echoes of the ultrasonic beam to obtain an ultrasonic echo signal;obtaining an ultrasonic image of a region of interest in the examination object according to the ultrasonic echo signal;determining a first sampling position in the region of interest and obtaining a first Doppler spectrum corresponding to the first sampling position according to the ultrasonic echo signal;determining a second sampling position in the region of interest and obtaining a second Doppler spectrum corresponding to the second sampling position according to the ultrasonic echo signal;evaluating a difference between the first Doppler spectrum and the second Doppler spectrum; andoutputting the difference.2. The ultrasonic flow spectral Doppler imaging method of claim 1 , further comprising simultaneously displaying the first Doppler spectrum and the second Doppler spectrum.3. The ...

ULTRASOUND DIAGNOSTIC APPARATUS, CONTROL METHOD OF ULTRASOUND DIAGNOSTIC APPARATUS, AND PROCESSOR FOR ULTRASOUND DIAGNOSTIC APPARATUS

An ultrasound diagnostic apparatus () includes a B-mode processing unit () that generates a B-mode image in which at least a blood vessel is imaged based on a reception signal obtained by transmitting and receiving ultrasonic waves to and from a subject; a display device () that displays the B-mode image; a vascular wall detection unit () that detects a vascular wall based on the B-mode image; a gate setting unit () that sets a Doppler gate in the blood vessel on the B-mode image; a Doppler processing unit () that acquires Doppler data in the Doppler gate; a blood flow velocity calculation unit () that calculates a blood flow velocity based on the Doppler data; and a blood flow rate measurement unit () that measures a blood flow rate based on the detected vascular wall and the calculated blood flow velocity, in which the blood flow rate is automatically measured based on a fixed start trigger. 1. An ultrasound diagnostic apparatus comprising:a display device;a processor configured togenerate a B-mode image in which at least a blood vessel is imaged based a reception signal obtained by transmitting and receiving ultrasonic waves to and from a subject,detect a vascular wall by analyzing the B-mode image,set a Doppler gate in the blood vessel on the B-mode image,acquire Doppler data in the Doppler gate,calculate a blood flow velocity based on the Doppler data,measure a blood flow rate based on the vascular wall and the blood flow velocity, andautomatically measure the blood flow rate based on a fixed start trigger.2. The ultrasound diagnostic apparatus according to claim 1 ,wherein the processor is further configured toset a search line for searching for the vascular wall on the B-mode image, anddetect an anterior vascular wall and a posterior vascular wall as the vascular wall based on a brightness profile of the B-mode image on the set search line.3. The ultrasound diagnostic apparatus according to claim 2 ,wherein the processor is further configured toset a ...

ULTRASONIC IMAGING SYSTEM

An existing ultrasonic diagnostic device is used to obtain a color flow image of a target object whose stiffness is to be measured. At this time, a vibration exciter applies a micro vibration with a frequency of n/4 (n represents an odd number equal to or larger than 1) to the target object with respect to a burst frequency of an ultrasonic pulse to generate a shear elastic wave. As a result, a striped pattern corresponding to the stiffness of the target object caused by the shear elastic wave appears on a display of the ultrasonic diagnostic device as a shear elastic wave detection image. 1. An ultrasonic imaging system comprising:an ultrasonic image forming device capable of outputting a color flow image which renders a fluid existing within an object-to-be-measured by: outputting an ultrasonic pulse for measuring the inside structure of the object-to-be-measured in a non-invasive manner, and emitting the ultrasonic pulse from an ultrasonic probe and receiving the ultrasonic pulse; anda shear elastic wave generator that applies a vibration with a predetermined frequency to the object-to-be-measured.2. The ultrasonic imaging system according to claim 1 , wherein claim 1 , with respect to a burst frequency corresponding to a repetition cycle of the ultrasonic pulse claim 1 , the shear elastic wave generator applies a vibration with a frequency of n/4 (n represents an odd number equal to or greater than 1) as the center frequency to the object-to-be-measured3. The ultrasonic imaging system according to claim wherein the shear elastic wave generator applies a vibration to the object-to-be-measured claim 1 , wherein the frequency of the vibration falls in a range of +10 Hz at most with respect to the center frequency.4. The ultrasonic imaging system according to further comprising:a CFI image processing device into which data of the color flow image outputted from the ultrasonic image forming device is inputted and from which image data containing information about ...

ULTRASONIC DIAGNOSTIC DEVICE

A tomographic image forming unit forms a tomographic image of a target tissue on the basis of received signals which are obtained by sending and receiving ultrasound waves to and from the target tissue. A tomographic image analysis unit analyzes a formed tomographic image with image processing techniques and extracts a reference portion on the target tissue. On the basis of the extracted reference portion, a Doppler measurement position specification unit specifies a Doppler measurement position. A Doppler waveform forming unit performs Doppler measurement at the specified Doppler measurement position and forms a Doppler waveform. The formed tomographic image, a cursor which indicates the specified Doppler measurement position, and the formed Doppler waveform are displayed on a display unit. When specifying the Doppler measurement position, a color Doppler image may also be referred to. 1. An ultrasonic diagnostic device , comprising:a tomographic image forming unit configured to form, based on a received signal obtained by transmitting and receiving an ultrasound wave to and from a beam scanning area including a target tissue in which blood flows, a tomographic image of the target tissue;a tomographic image analysis unit configured to analyze the tomographic image to extract a reference portion in the target tissue;a position specification unit configured to specify a Doppler measurement position used for measuring motion of a blood flow in a position within the target tissue which is different from the reference portion, based on the reference portion; anda Doppler waveform forming unit configured to form a Doppler waveform showing a movement of blood flow in the Doppler measurement position, based on a received signal obtained by transmitting and receiving an ultrasound wave to the Doppler measurement position.2. The ultrasonic diagnostic device according to claim 1 , further comprising:a blood flow information generation unit configured to generate blood flow ...

ULTRASOUND SYSTEM AND METHOD OF VESSEL IDENTIFICATION

The present invention proposes an ultrasound system and method of identifying a vessel of a subject. The ultrasound system comprises: an ultrasound probe configured to simultaneously acquire a sequence of ultrasound blood flow data frames (such as a sequence of ultrasound Doppler data frames) and a sequence of ultrasound B-mode data frames of a region of interest including the vessel over a predetermined time period; a blood flow region selecting unit configured to select a blood flow region in the sequence of blood flow data frames; and a vessel segmenting unit configured to segment the vessel in at least one frame of the sequence of ultrasound B-mode data frames based on the selected blood flow region. Since there is no need to manually place any seed point for vessel segmentation any more, the user dependency is reduced and a fast measurement is made possible. Furthermore, since the segmentation of the vessel in a B-mode data frame makes use of information from multiple blood flow data frames, more robust, reliable segmentation can be achieved. 1. An ultrasound system for identifying a vessel of a subject , comprising:an ultrasound probe configured to simultaneously acquire a sequence of ultrasound blood flow data frames and a sequence of ultrasound B-mode data frames of a region of interest including the vessel over a predetermined time period;a blood flow region selecting unit configured to detect a blood flow region in each frame of multiple frames in the sequence of ultrasound blood flow data frame, and to select a blood flow region among the detected blood flow regions; anda vessel segmenting unit configured to segment the vessel in at least one frame of the sequence of ultrasound B-mode data frames based on the selected blood flow region, the at least one frame comprising the ultrasound B-mode data frame temporally corresponding to the ultrasound blood flow data frame in which the selected blood flow region is detected.2. The ultrasound system of claim 1 , ...

NON-INVASIVE BLOOD PRESSURE MEASUREMENT USING PULSE WAVE VELOCITY

A method and apparatus to non-invasively measure instantaneous blood pressure using pulse wave velocity are disclosed. A measurement component is affixed to a patient proximate to a blood vessel. One or more sensors, such as an ultrasound sensor, is included in the measurement component. The measurement component substantially simultaneously measures the pulse wave velocity of the vessel and the instantaneous blood velocity within the vessel. The measurement component computes the instantaneous blood pressure of the vessel using, for example, the water hammer equation. The one or more sensors may be contained in a disposable patch or collocated with another sensor, such as a patient-monitor sensor, or the like. 1. A device , comprising:a transducer assembly configured to emit at least one signal, the at least one signal including an emitted waveform, the emitted waveform having propagation characteristics, the transducer assembly configured to receive at least one return signal including a return waveform;an analysis component configured to analyze the return signal to determine a pulse wave velocity value and an instantaneous blood velocity value, the analysis component being further configured to compute a blood pressure value from the pulse wave velocity value and the instantaneous blood velocity value.2. The device recited in claim 1 , wherein the computation of the blood pressure value is performed according to the following equation:{'br': None, 'sub': i', 'i, 'P=ρPWVv'}{'sub': 'i', 'where PWV is the pulse wave velocity, ρ is a density of blood, vi is the blood velocity value, and Pis the blood pressure value.'}3. The device recited in claim 1 , wherein the device comprises a monitor.4. The device recited in claim 3 , wherein the monitor comprises a monitor/defibrillator.5. The device recited in wherein the device comprises an ultrasound machine.6. The device recited in claim 1 , wherein the device comprises a wearable device affixed to a patient proximate to ...

ULTRASOUND DIAGNOSIS APPARATUS AND METHOD OF OPERATING THE SAME

Provided is an ultrasound diagnosis apparatus and a method of operating the ultrasound diagnosis apparatus. The method includes: obtaining first Doppler data of a blood flow introduced into a cardiac ventricle of an object and second Doppler data of a blood flow discharged from the cardiac ventricle; setting a landmark corresponding to a predetermined motion of the cardiac ventricle in each of a first Doppler image generated based on the first Doppler data and a second Doppler image generated based on the second Doppler data; synchronizing the first Doppler image and the second Doppler image based on the set landmark; and displaying the first Doppler image and the second Doppler image that are synchronized. 1. A method of operating an ultrasound diagnosis apparatus , the method comprising:obtaining first Doppler data of a blood flow introduced into a cardiac ventricle of an object and second Doppler data of a blood flow discharged from the cardiac ventricle;setting a landmark corresponding to a predetermined motion of the cardiac ventricle in each of a first Doppler image generated based on the first Doppler data and a second Doppler image generated based on the second Doppler data;synchronizing the first Doppler image and the second Doppler image based on the set landmark; anddisplaying the first Doppler image and the second Doppler image that are synchronized.2. The method of claim 1 , wherein the synchronizing of the first Doppler image and the second Doppler image comprises:determining a first cycle of a heartbeat of the object based on the first Doppler data and a second cycle of the heartbeat of the object based on the second Doppler data;when the first cycle and the second cycle are different from each other, correcting at least one of the first Doppler image and the second Doppler image to make the first cycle and the second cycle coincide with each other; andsynchronizing the first Doppler image and the second Doppler image having the coincided heartbeat ...

ULTRASOUND SYSTEM WITH DYNAMICALLY AUTOMATED DOPPLER FLOW SETTINGS AS A SAMPLE VOLUME IS MOVED

An ultrasound system performs duplex colorflow and spectral Doppler imaging, with the spectral Doppler interrogation performed at a sample volume location shown on the colorflow image. The colorflow image is displayed in a color box overlaid on a co-registered B mode image. A color box position and steering angle processor analyzes the spatial Doppler data and automatically sets the color box angle and location over a blood vessel for optimal Doppler sensitivity and accuracy. The processor may also automatically set the flow angle correction cursor in alignment with the direction of flow. In a preferred embodiment these optimization adjustments are made automatically and continuously as a user pauses at points for Doppler measurements along a length of the blood vessel. 1. An ultrasound system , comprising:a transducer probe operable to transmit beams and receives echo signals from a region of a subject where flow is present;a Doppler processor responsive to the echo signals to produce a colorflow Doppler image and a spectral Doppler image;a display operable to display the colorflow Doppler image, the spectral Doppler image, or a combination of both;a user control that is adapted to be manipulated by a user to indicate a plurality of locations where spectral Doppler measurements are to be made in the subject, wherein the plurality of locations are shown in a color box that encompasses at least a portion of the colorflow Doppler image; and calculate a flow-weighted center of mass for the blood vessel shown in the color box by analyzing spatial dimensions of the flow in the blood vessel and finding a center of the flow;', 'calculate a flow angle at the flow-weighted center of mass for each of the plurality of locations where spectral Doppler measurements are to be taken;', 'position the color box based, at least in part, on the flow-weighted center of mass; and', 'orient the color box steering angle based, at least in part, on the flow angle for each of the plurality ...

RAPID PULSE CONFIRMATION DEVICE

A wearable rapid pulse confirmation (RPC) device is designed to be worn by a living subject, and includes a Doppler array comprising at least one piezoelectric ultrasonic transducer, configured to detect a change in blood velocity in a blood vessel; a screen; a loud speaker; and a band or adhesive configured to hold the wearable RPC device in proximity to a body surface of the living subject. The Doppler array is configured to detect a change in blood velocity, pulse rate, pulse strength, or a combination thereof in a blood vessel; and to provide feedback through the screen and the loudspeaker. The Doppler array may include multiple types of piezoelectric ultrasonic transducers, including low frequency piezoelectric ultrasonic transducers having a working frequency ranging from 2 MHz to <6 MHz; medium frequency piezoelectric ultrasonic transducers having a working frequency of 6 MHz to 10 MHz; and high frequency piezoelectric ultrasonic transducers having a working frequency of 10 MHz to 18 MHz. 1. A wearable rapid pulse confirmation (“RPC”) device configured to be worn by a living subject , comprising:a Doppler array comprising at least one piezoelectric ultrasonic transducer, configured to detect a change in blood velocity in a blood vessel;a screen,a loud speakera band configured to hold the wearable RPC device in proximity to a body surface of the living subject, said body surface being a wrist, an arm, a leg, or a neck of the living subject, and wherein the Doppler array is configured to detect a change in blood velocity, pulse rate, pulse strength, or a combination thereof in a blood vessel; and', 'wherein the Doppler array is configured to provide feedback through the screen and the loudspeaker., 'a sensor configured to detect a diameter or circumference of the band;'}2. The wearable RPC device of claim 1 , wherein the array of piezoelectric ultrasonic transducers comprises at least one first piezoelectric ultrasonic transducer having a first frequency claim ...

PERIPHERAL ULTRASOUND DEVICE

Implementations described and claimed herein provide systems and methods for acquiring circulatory system information from one or more patients. In one implementation, a device for acquiring ultrasound-generated data includes a housing, an imaging mechanism, and an adjustment mechanism. The housing has an interfacing surface with an opening, and the imaging mechanism is positioned in the opening. The imaging mechanism is rotatable in a plane generally parallel to the interfacing surface and pivotal about an axis generally orthogonal to the interfacing surface. The adjustment mechanism is positioned within the housing and associated with the imaging mechanism to cause the imaging mechanism to rotate in the plane or pivot about the axis. The adjustment mechanism comprises an orientation adjuster having an orientation actuator and a direction adjuster having a direction actuator. 1. A device for acquiring ultrasound-generated data , comprising:a housing having an interfacing surface with an opening;an imaging mechanism positioned in the opening and being rotatable in a plane generally parallel to the interfacing surface and being pivotal about an axis generally orthogonal to the interfacing surface; andan adjustment mechanism positioned within the housing and associated with the imaging mechanism to cause the imaging mechanism to rotate in the plane or pivot about the axis, the adjustment mechanism comprising an orientation adjuster having an orientation actuator and a direction adjuster having a direction actuator.2. The device of claim 1 , wherein the orientation adjuster comprises an annular ring having gear teeth on a periphery thereof and the orientation actuator is a stationary screw positioned tangentially to the periphery of the annular ring.3. The device of claim 1 , wherein the direction adjuster includes a ball gear with gear teeth on an arcuate surface thereof and the direction actuator is a stationary screw positioned tangentially to the arcuate edge of ...

ULTRASONIC DIAGNOSING DEVICE

In a secondary beam method, scanning is performed using Doppler measurement ultrasound beams as primary beams, and Doppler measurement components are measured on the basis of the ultrasound waves received from the direction of each Doppler measurement ultrasound beam. Then, ultrasound waves forming secondary beams are sent and received, and the Doppler effect for the secondary beam direction component at the point of intersection of the Doppler measurement ultrasound beam with the secondary beams is measured. Furthermore, using the intersection point as the position for starting integration, an integration calculation based on the law of conservation of mass is performed along the route that intersects with the Doppler measurement ultrasound beams, and the component in the direction of the intersection route is found. The initial value for integration is found on the basis of the Doppler measurement component and the secondary beam direction component at the integration start point. 1. An ultrasound diagnostic apparatus comprising:a transmission and reception portion that transmits and receives ultrasound;a main beam controller that controls the transmission and reception portion, to scan a main beam formed by ultrasound transmitted and received by the transmission and reception portion;a main Doppler measurement portion that Doppler-measures a main beam direction component of a bloodstream velocity for each main beam direction based on ultrasound received by the transmission and reception portion from each main beam direction;a calculator that determines an intersecting path direction component of the bloodstream velocity for a position on an intersecting path that intersects each main beam direction based on each main beam direction component of the bloodstream velocity on the intersecting path;a sub-beam controller that causes the transmission and reception portion to transmit and receive ultrasound for forming a sub-beam passing through a point on the ...

Ultrasonic diagnostic device

An ultrasonic diagnostic device ( 10 ) has a probe holder ( 38 ) that is mounted on a side surface of a device main body ( 12 ). The probe holder ( 38 ) holds a probe head ( 34 ) of an ultrasonic probe. The probe holder ( 38 ) can rotate around an axis line that extends in the left-right direction and can be stopped in a desired position. The orientation, with respect to the device main body ( 12 ), of the probe head that is held by the probe holder ( 38 ) can be altered.

SKIN PERFUSION MONITORING DEVICE

A method and a device for diagnostic of skin cancer and other mammalian skin tissue pathologies are described. The method relies on determination of pathological changes in tissue vascularization and capillary blood flow. The device uses photonic emitters and detectors to characterize temporal and spatial changes in blood flow in response to external perturbation such as external mechanical force or temperature change. 134.-. (canceled)35. A device for measuring blood microcirculation , the device comprising an inner member comprising a rounded , outwardly protruding surface capable of moving towards and contacting a skin region and providing an external force to the skin region , wherein the external force is sufficient in pressure and duration to alter blood perfusion in the skin region; the inner member comprising a sensor comprising a photonic excitation source and a photonic detector , wherein the sensor is capable of measuring a blood flow parameter prior to , during , and/or after application of the external force to the skin region.36. The device according to claim 35 , further comprising an outer member wherein the inner member is configured to move relative to the outer member claim 35 , allowing for the application of variable pressure to the skin region.37. The device according to claim 36 , wherein the outer member comprises at least one surface region configured to be in substantial contact with a region proximal to the skin region contacted by the inner member during movement of the inner member.38. The device according to claim 35 , wherein the rounded claim 35 , outwardly protruding of the inner member comprises a convex claim 35 , cylindrical claim 35 , parabolic claim 35 , or spherical surface for exerting pressure on the skin region.39. The device according to claim 36 , wherein the device is configured to determine a presence of a disease state in a subject.40. The device according to claim 39 , wherein the disease state is hypercholesterolemia ...

Sublingual microcirculation detection device, sublingual microcirculation detection system and processing method thereof

The present disclosure relates to a sublingual microcirculation detection device, a sublingual microcirculation detection system and a processing method thereof, belonging to the technical field of assessments of sublingual microcirculation. The detection device includes a base as well as a first side wall structure and a second side wall structure which are fixed to a bottom surface of the base, where the first side wall structure is provided with an ultrasonic probe, and the second side wall structure is provided with a saliva brush; near-infrared lamps and a camera are arranged on the bottom surface of the base; and a main controller on a side surface of the base is electrically connected to the near-infrared lamp, the camera, and the ultrasonic probe and communicates with an application (APP) of an external terminal by means of a wireless module.

SYSTEMS AND METHODS FOR VASCULAR MAPPING

Systems, apparatuses, methods, and non-transitory computer-readable media for mapping a section of a vasculature of a subject are described herein, including moving a probe to a first position at a body of the subject adjacent the section of the vasculature; transmitting, by the probe, a first ultrasound beam into a first portion of the section of the vasculature through the body of the subject; receiving first ultrasound data including at least one imaging parameter of the first portion based on the first ultrasound beam; moving the probe to a second position at the body of the subject adjacent the section of the vasculature and different from the first position; transmitting, by the probe, a second ultrasound beam into a second portion of the section of the vasculature through the body of the subject; receiving second ultrasound data including the at least one imaging parameter of the second portion based on the second ultrasound beam; and constructing a map of the section of the vasculature based on the first ultrasound data and the second ultrasound data. 1. A method , comprising:receiving first ultrasound data including at least one imaging parameter of a first portion of a vasculature of a subject based on a first ultrasound beam, wherein the first ultrasound beam is transmitted by a probe at a first position relative to a body of the subject;receiving second ultrasound data including the at least one imaging parameter of a second portion of the vasculature based on a second ultrasound beam, wherein the first ultrasound beam is transmitted by the probe at a second position relative to the body of the subject;determining that ultrasound data acquired is enough for constructing a map of the vasculature, wherein the ultrasound data comprises the first ultrasound data and the second ultrasound data; andin response to determining that the ultrasound data acquired is enough for constructing the map, constructing the map of the vasculature based at least in part on ...

SPECTRAL DOPPLER PROCESSING WITH ADAPTIVE SAMPLE WINDOW SIZE

A spectral Doppler processor for an ultrasound system produces blood flow velocity estimates by processing a sequence of complex blood flow echo samples with an FFT algorithm. The FFT algorithm is executed with a long window of samples to produce velocity estimates with good velocity precision and is executed with a short window of samples to produce velocity estimates with good time precision. The long window algorithm is used when blood flow velocity is not changing rapidly, and the short window algorithm is used when blood flow velocity is changing rapidly. 1. An ultrasonic diagnostic imaging system with a spectral Doppler display mode comprising:a source of complex echo data samples returned from a location of blood flow;a first spectrogram processor configured to execute an FFT algorithm using a window of a first number of complex echo data samples and to produce a first spectrogram comprising first velocity estimates;a second spectrogram processor configured to execute an FFT algorithm using a window of a second number of complex echo data samples and to produce a second spectrogram comprising second velocity estimates; anda select/interpolate processor responsive to the first and second velocity estimates and configured to produce an adaptive Doppler velocity spectrogram, wherein the adaptive Doppler velocity spectrogram comprises a selection of the first velocity estimates or the second velocity estimates responsive to an indication of a predominate direction of spectral segments in the first spectrogram or the second spectrogram.2. The ultrasonic diagnostic imaging system of claim 1 , further comprising an edge detector having inputs coupled to the spectrogram processors and an output coupled to the select/interpolate processor claim 1 ,wherein the select/interpolate processor produces the adaptive Doppler velocity spectrogram in response to the output of the edge detector.3. The ultrasonic diagnostic imaging system of claim 2 , wherein the select/ ...

HOLDING DEVICE FOR AN IMAGING TRANSDUCER AND A SYSTEM FOR MEASURING FLOW MEDIATED DILATION

Disclosed is an imaging transducer holding device for use with a patient that includes a holding structure which holds an imaging transducer and an attachment portion which attaches the holding structure to a patient. The holding device is useful for assessing the condition of a patient's blood vessel via ultrasound imaging. Also disclosed are a system and a method for imaging the vascular condition of a patient, the system containing the holding device and an imaging transducer. 1. An imaging transducer holding device for use with a patient , comprising:a holding structure which holds an imaging transducer;an attachment portion which attaches the holding structure to a patient.2. The holding device according to claim 1 , wherein the holding structure includes an opening for the imaging transducer.3. The holding device according to claim 1 , wherein the holding structure is shaped to fit the patient.4. The holding device according to claim 1 , wherein the attachment portion is a strap.5. The holding device according to claim 1 , wherein the holding structure includes a securing portion to secure an imaging transducer in the holding structure.6. The holding device according to claim 5 , wherein the securing portion is a strap.7. The holding device according to claim 5 , wherein the securing portion is screw.8. The holding device according to claim 1 , further comprising a transducer holder.9. The holding device according to claim 8 , wherein the transducer holder moves relative to the holding structure.10. The holding device according to claim 8 , wherein the transducer holder moves linearly relative to the holding structure.11. The holding device according to claim 8 , wherein the transducer holder moves rotationally relative to the holding structure.12. The holding device according to further comprising a backing portion.13. The holding device according to claim 1 , wherein the holding structure portion is made by injection molding claim 1 , blow molding claim 1 , ...

Systems and Method for Health Screening For Vascular Disease

An angiography system and method comprising of an imaging system for imaging arteries, a processor for processing image data for at least one artery of a participant and an output comprising the image of the artery, a reference image for the artery and physiological data and indexes of the participant. 2140.-. (canceled)41. A health screening system comprising:an imaging system for imaging blood vessels of a participant;input means for inputting participant biographical data and/or one or more physiological values related to the health of the participant; processing image data and participant data,', 'calculating physiological indexes for the participant based on at least one of the image data, the participant data and/or the physiological values, and', 'assembling at least a portion of the image data, the participant data, the physiological values and/or the physiological indexes of the participant into a single document capable of being outputted;', 'assembling for the single document, corresponding normal values for one or more of the physiological values and/or physiological indexes; and', 'output means for outputting the document, wherein the document further comprises a single page, the single page including images of one or more scanned arteries of a screened participant, each image having a corresponding image of a corresponding normal artery and a plurality of the collected physiological values and/or calculated physiological indexes., 'a processor for42. The system according to claim 41 , wherein the output means is at least one of a display and a printer.43. The system according to claim 41 , wherein the blood vessels comprise arteries.44. The system according to claim 41 , wherein the blood vessels comprise carotid arteries.45. The system according to claim 41 , wherein the input means comprises at least one of a keyboard claim 41 , a mouse claim 41 , and a microphone.46. The system according to claim 41 , wherein the participant biographical data ...