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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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26-01-2012 дата публикации

Medical emitter/detector imaging/alignment system and method

Номер: US20120022357A1
Автор: Alan Fischer, Andrew G. Fischer, David Chang, Nicholas Ransom Powley
Принадлежит: Individual

Improved methods and apparatuses for imaging during medical procedures in accordance with various embodiments of the present invention include use of an image correction algorithm. In various embodiments, an original image of a region of interest where a medical procedure occurring along a particular axis will be performed is created with a beam emitter and a generally planar detector. Due to the emitter not being aligned orthogonal to the detector, the original image will be skewed. Using a known location and orientation of the detector, a location and orientation of the emitter provided by a position monitoring system, and the original image, a processing system can execute the image correction algorithm to provide a corrected image to allow a surgeon to perform the medical procedure while viewing an accurate corrected image in real-time.

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Номер записи: 1
01-03-2012 дата публикации

Medical image alignment apparatus, method, and program

Номер: US20120053454A1
Автор: Caihua WANG, Keigo Nakamura, Satoshi Ihara
Принадлежит: Fujifilm Corp

Generating, with respect to each of the three-dimensional image and the three-dimensional comparison image, a plurality of tomographic images orthogonal to a central axis of each vertebra of the subject along the central axis, calculating a first characteristic amount representing a profile in a direction orthogonal to the central axis at each point on the central axis based on the tomographic images, calculating a second characteristic amount representing a profile in a direction of the central axis at each point on the central axis based on the tomographic images, calculating a third characteristic amount representing regularity of disposition of each vertebra at each point on the central axis based on the calculated first and second characteristic amounts, and aligning positions of the third characteristic amount calculated from the three-dimensional image and the third characteristic amount calculated from the three-dimensional comparison image along the central axis.

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Номер записи: 2
01-03-2012 дата публикации

Method and System For Patient-Specific Modeling of Blood Flow

Номер: US20120053921A1
Автор: Charles A. Taylor
Принадлежит: HeartFlow Inc

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.

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Номер записи: 3
15-03-2012 дата публикации

Method of removing foil shadows of a synchronous grid, and a radiographic apparatus using the same

Номер: US20120063699A1
Автор: Akinori Fujita
Принадлежит: Shimadzu Corp

Grid foil shadows of a synchronous grid are removable by obtaining an approximate fluoroscopic image by extracting detection signals of pixels not influenced by the grid foil shadows from a fluoroscopic image and carrying out an interpolation process thereon, obtaining a grid foil shadow image by determining a difference between the fluoroscopic image and the approximate fluoroscopic image, obtaining a foil shadow standard image by averaging the grid foil shadow image in a longitudinal direction of the grid foil shadows, and removing the grid foil shadows by determining a difference between the fluoroscopic image and the foil shadow standard image.

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Номер записи: 4
05-04-2012 дата публикации

Device sizing support during interventions

Номер: US20120082360A1
Автор: Raoul Florent
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

The invention relates to a method and an apparatus for providing device sizing support, the method comprising obtaining an X-ray image of a vessel, introducing a guide wire having a radiopaque wire tip into the vessel, obtaining an X-ray image of the wire tip, segmenting the wire tip when it passes through the vessel, and providing sizing information relating to the size of the vessel based on the size of the wire tip. The imaging system according to the invention includes means providing functionality for performing the method according to the invention.

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Номер записи: 5
17-05-2012 дата публикации

Anatomy modeling for tumor region of interest definition

Номер: US20120123253A1
Автор: Roland Opfer, Steffen Renisch
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

A hot spot detection system for automatically segmenting and quantifying hot spots in functional images includes a segmentation unit ( 76 ) to segment an anatomical image representation ( 72 ) into regions corresponding to anatomical structures of a subject. A hot spot detection unit ( 90 ) detects regions of high uptake from a functional second image representation ( 74 ). The regions of high tracer uptake indicate high metabolic activity which maybe caused by potentially hazardous tumor lesions or other malignant processes. However, a number of normally functioning organs uptake high amounts of imaging tracer, particularly FDG. Therefore, a suppression unit ( 102 ) suppresses regions of high tracer uptake in the functional second image representation based on the results of a classification unit ( 101 ). The classification unit classifies the regions of high tracer uptake according to their position relative to the anatomical structures segmented from the anatomical first image representation. The remaining un-suppressed regions of high uptake are identified by an identification unit ( 106 ) as one of potential lesion and non-potential lesion.

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Номер записи: 6
24-05-2012 дата публикации

System and method for performing a comprehensive health assessment

Номер: US20120130145A1
Автор: Anila Lingamneni, David L. Widmann, John Michael Sabol, Kadri Nizar Jabri, Lawrence E. Murphy, Scott William Robinson
Принадлежит: General Electric Co

A system and method for providing a comprehensive overall health assessment is disclosed. A health assessment system includes first and second support structures oriented in a vertical fashion and spaced apart from one another to define a scanning area configured to receive a subject to be scanned, an x-ray imaging system incorporated into the first and second support structures and configured to acquire x-ray image data from the subject in a standing position, and at least one additional data acquisition device configured to acquire health related data from the subject. The health assessment system also includes a computer programmed to receive the x-ray image data and the health related data and generate a diagnostic output based on the x-ray image data and the health related data, the diagnostic output comprising at least one of a health related diagnosis and a recommendation for future action.

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Номер записи: 7
26-07-2012 дата публикации

Imaging Method and Apparatus with Optimized Grayscale Value Window Determination

Номер: US20120189192A1
Автор: Anna Jerebko
Принадлежит: SIEMENS AG

A self-learning imaging method is particularly suited radiation imaging, such as for mammography. A plurality of training data sets are displayed on a display apparatus. A grayscale value setting is selected for each training data set. A feature set with at least one feature is assigned to each training data set. The feature set and the grayscale value setting are stored for each training data set. The grayscale value setting of an examination data set is selected according to the feature sets and the grayscale value setting of the training data sets.

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Номер записи: 8
16-08-2012 дата публикации

Imaging based virus detection

Номер: US20120209093A1
Автор: Mark E. Olszewski, Matthew J. Walker
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

A method for detecting a virus in a patient based on imaging data includes scanning a region of interest of the patient with an imaging device and generating imaging data indicative of the region of interest, identifying at least one marker in the image data that corresponds to the virus based on the identified at least one marker and a set of predetermined imageable markers that correspond to the virus, classifying the virus as a particular strain of the virus based on a set of classification rules, and generating a signal indicative of the particular strain. The method optionally includes generating a signal indicative of the classification and electronically conveying the signal to at least one entity.

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Номер записи: 9
23-08-2012 дата публикации

Adaptive x-ray control

Номер: US20120213333A1
Автор: John W. Allison
Принадлежит: Individual

Controlling the timing of acquiring x-ray images based on target movement.

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Номер записи: 10
13-09-2012 дата публикации

Automatic quantitative vessel analysis

Номер: US20120230565A1
Автор: Alexander Steinberg, David Tolkowsky, Eldad Klaiman, Jacob Blank, Ran Cohen, Sagiv PHILIPP
Принадлежит: Sync Rx Ltd

Apparatus and methods are described for use with an image of blood vessels of a subject. In response to a user designating a single point on the image (a) a target portion of a blood vessel is automatically identified in the vicinity of the designated point, and (b) quantitative vessel analysis is performed on the target portion of the blood vessel. An output is generated based upon the quantitative vessel analysis. Other embodiments are also described.

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Номер записи: 11
01-11-2012 дата публикации

Method and apparatus for using time of flight information to detect and correct for motion in imaging scans

Номер: US20120275657A1
Автор: Jeffrey Kolthammer, Patrick Oliver, Piotr J. Maniawski
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

In accordance with one aspect of the invention a method and apparatus for utilizing time of flight information to detect motion during a medical imaging acquisition, such as a PET imaging acquisition, is provided. In accordance with another aspect of the invention, a method and apparatus for detecting and correcting for respiratory motion and cardiac motion in medical images, such as PET images, is provided.

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Номер записи: 12
15-11-2012 дата публикации

Radiation imaging apparatus, and control method and program of the apparatus

Номер: US20120288062A1
Автор: Takashi Takasaki
Принадлежит: Canon Inc

An energy control unit continuously adjusts energy of radiations in one shot emitted by an X-ray irradiation unit. An X-ray detection unit generates a plurality of image data pieces in one shot by detecting the radiations whose energy is continuously adjusted and transmitted through a subject. An image classification unit classifies the plurality of image data pieces generated by the X-ray detection unit into image data generated by the radiations of a high energy side and image data generated by the radiations of a low energy side. An image subtraction unit performs weighting and subtraction on the image data generated by the radiations of the high energy side and the image data generated by the radiations of the low energy side.

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Номер записи: 13
06-12-2012 дата публикации

Method and device for adjusting the visualization of volume data of an object

Номер: US20120308095A1
Автор: Anna Jerebko, Klaus Engel
Принадлежит: Individual

An adjustment of the visualization of volume data of an object as an image with regard to diagnostically relevant medical information relating to the environment of a region under investigation is provided. In the process, at least one slice region is specified in accordance with slice information within the volume data. A first mapping of a value range of the volume data is used for visualizing the at least one slice region on a display. A second mapping different from the first mapping is used for visualizing a region bordering on the at least one slice region on the display.

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Номер записи: 14
06-12-2012 дата публикации

Medical image processing apparatus, a medical imaging apparatus, and a medical image processing program

Номер: US20120310074A1
Автор: Kensuke Shinoda, Kyohei Yamamori, SATOSHI Wakai, Tetsuya Yokota, Tomohiro Kawasaki, Yoshifumi Yamagata
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

A medical image processing apparatus includes a morphological identification part, a function calculator and a display processor. The morphological identification part identifies morphological information related to thickness of a heart muscle of a subject or thickness of surrounding sites thereof from medical image data obtained by capturing an image of the subject using a medical imaging apparatus. The function calculator determines cardiac function information related to movement of the heart muscle of the subject based on the medical image data. The display processor causes a display to display a combination of the identified morphological information and the calculated cardiac function information which is identified by color. The medical image processing apparatus can easily diagnose diseases.

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Номер записи: 15
03-01-2013 дата публикации

Medical image processing apparatus

Номер: US20130002657A1
Автор: Shinya Sugiyama
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

According to one embodiment, a medical image processing apparatus includes an image obtaining unit, a three-dimensional medical image generating unit, a correction information obtaining unit, a display angle correcting unit, and a display unit. The image obtaining unit obtains medical image data including an object. The three-dimensional medical image generating unit generates stereoscopic three-dimensional medical image data including a plurality of objects based on the medical image data obtained by the image obtaining unit. The correction information obtaining unit obtains correction information for the plurality of objects. The display angle correcting unit corrects, based on the correction information, the three-dimensional medical image data so that a display angle of at least one of the plurality of objects is corrected. The display unit displays a three-dimensional medical image based on the three-dimensional medical image data corrected by the display angle correcting unit.

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Номер записи: 16
24-01-2013 дата публикации

Endoscopic observation support system, method, device and program

Номер: US20130023730A1
Автор: Keigo Nakamura, Yoshiro Kitamura
Принадлежит: Fujifilm Corp

A virtual field of view of a virtual endoscope, which is positioned at a position corresponding to a detected position of an endoscope in a 3D medical image, is determined based on a position of a structure of interest, the corresponding position and a posture of the endoscope, and an angle of view of the endoscope, such that the position of the structure of interest is contained within the virtual field of view and the virtual field of view has continuity with the field of view of the endoscope. From the 3D medical image inputted, a virtual endoscopic image having the determined virtual field of view with the view point thereof being the corresponding position of the endoscope is generated. The generated virtual endoscopic image is displayed on a WS display.

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Номер записи: 17
21-02-2013 дата публикации

Image segmentation of organs and anatomical structures

Номер: US20130044930A1
Автор: Brian Lennon, James Stefansic, Jon Waite, Senhu LI
Принадлежит: Individual

A system and method to conduct image segmentation by imaging target morphological shapes evolving from one 2-dimension (2-D) image slice to one or more nearby neighboring 2-D images taken from a 3-dimension (3-D) image. One area defined by a user as a target on an image slice can be found in a corresponding area on a nearby neighboring image slice by using a deformation field generated with deformable image registration procedure between these two image slices. It allows the user to distinguish target and background areas with the same or similar image intensities.

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Номер записи: 18
14-03-2013 дата публикации

Method and system for patient-specific modeling of blood flow

Номер: US20130064438A1
Автор: Charles A. Taylor, Christopher K. Zarins, Gilwoo Choi, Timothy A. Fonte, Ying Bai
Принадлежит: HeartFlow Inc

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.

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Номер записи: 19
14-03-2013 дата публикации

Method and system for patient-specific modeling of blood flow

Номер: US20130066618A1
Автор: Charles A. Taylor, Christopher K. Zarins, Gilwoo Choi, Timothy A. Fonte, Ying Bai
Принадлежит: HeartFlow Inc

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.

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Номер записи: 20
18-04-2013 дата публикации

ENDOSCOPE SYSTEM

Номер: US20130096423A1
Автор: HASEGAWA Jun, YAMAMOTO Tatsuro
Принадлежит: OLYMPUS MEDICAL SYSTEMS CORP.

An endoscopic system includes an insertion portion inserted into a tubular body, a ranging mechanism, an insertion path calculation unit and a presentation unit. The insertion portion includes a distal end and a bending portion defining a driving face. The ranging mechanism acquires distance information on the driving face between an inner wall of the tubular body on a far side and the distal end of the insertion portion while the distal end is placed on a near side in the tubular body. The insertion path calculation unit calculates an insertion path for the distal end of the insertion portion extending from the near side on which the distal end is placed, to the far side, based on the distance information. The presentation unit presents the insertion path for the distal end of the insertion portion extending from the near side to the far side. 1. An endoscopic system comprising:an elongated insertion portion which is configured to be inserted into a tubular body and which includes, at a distal end portion, a bending portion configured to freely bend;a position/posture detection unit which is configured to detect a position and posture of the distal end portion as position/posture information;an operation position/posture calculation unit which is configured to calculate, as driving face information, a position and posture of a driving face on which the bending portion bends, based on the position/posture information;a peripheral information detection unit which is configured to detect a crooked region of the tubular body existing on the driving face as peripheral information based on the driving face information;a positional relationship calculation unit which is configured to calculate a positional relationship between the bending portion and the crooked region as positional relationship information based on the position/posture information, the driving face information and the peripheral information; anda presentation unit which is configured to present the ...

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Номер записи: 21
02-05-2013 дата публикации

Marking System for Computer-Aided Detection of Breast Abnormalities

Номер: US20130109953A1
Автор: Wang Shujun, Wehnes Jeffrey C.
Принадлежит: vuCOMP, Inc.

An embodiment method for marking an anomaly in an image comprises generating an initial boundary description representing a size, a shape and a location of the anomaly in the image, dilating the initial boundary description to generate a dilated boundary description representing the shape, the location and an enlarged size of the initial boundary description, and saving, on a non-transitory computer-readable medium, the dilated boundary description as an overlay plane object in an output format compliant with a industry standard digital image format. 1. A method for marking an anomaly in an image comprising pixels , the method comprising:generating an initial boundary description representing a size, a shape and a location of the anomaly in the image;dilating the initial boundary description to generate a dilated boundary description representing the shape, the location and an enlarged size of the initial boundary description; andsaving, on a non-transitory computer-readable medium, the dilated boundary description as an overlay plane object in an output format compliant with a industry standard digital image format.2. The method of claim 1 , wherein the industry standard is Digital Imaging and Communication in Medicine (DICOM) standard.3. The method of claim 1 , wherein the dilated boundary description is pixel data claim 1 , and the method further comprises claim 1 , before the saving claim 1 , converting the pixel data to vectorized data4. The method of claim 1 , wherein the dilated boundary description is vectorized claim 1 , and the method further comprises claim 1 , before the saving claim 1 , iteratively merging adjacent vectors in the dilated boundary description that differ in direction from each other by less than a first angle.5. The method of claim 1 , wherein the image is a mammogram claim 1 , and wherein the anomaly is a medically-suspicious mass.6. The method of claim 1 , wherein the dilated boundary description is initial vectorized data claim 1 , ...

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Номер записи: 22
09-05-2013 дата публикации

MEDICAL DIAGNOSTIC IMAGING APPARATUS

Номер: US20130116550A1
Автор: Ishii Hideaki, Kawasaki Tomohiro
Принадлежит:

Included are a storage unit for storing as first medical image information a three-dimensional image representing information about an inside of the subject; an image processor for generating a display image on the basis of the first medical image information and second medical image information; and a display for displaying the display image generated by the image processor. The image processor includes: a catheter position information detector for calculating a position of the balloon catheter C and detecting position information; and a balloon pressure-contact degree calculator for calculating a pressure-contact degree A of the tissues of the subject and a balloon b on the basis of the first medical image information and the position information. 1. A medical diagnostic imaging apparatus configured to emit an X-ray from an X-ray generator , to detect the X-ray passing through a subject by use of an X-ray detector , and to display a detection result , the X-ray detector and the X-ray generator collectively forming a photographic system , the apparatus comprising:a storage unit for storing as first medical image information a three-dimensional image representing information about an inside of the subject;an image processor for generating a display image on the basis of the first medical image information and second medical image information captured by photographing by the photographic system; anda display for displaying the display image generated by the image processor, wherein a catheter position information detector for calculating a position of a balloon catheter inserted into the body of the subject, and detecting position information of the balloon catheter; and', 'a balloon pressure-contact degree calculator for calculating a pressure-contact degree of tissues of the subject and a balloon on the basis of the first medical image information and the position information., 'the image processor comprises2. The medical diagnostic imaging apparatus of claim 1 , ...

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Номер записи: 23
16-05-2013 дата публикации

MEDICAL DEVICE AND METHOD FOR DISPLAYING MEDICAL IMAGE USING THE SAME

Номер: US20130123603A1
Автор: Shin Seung Woo
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Disclosed is a medical device which displays an object relating to an image considered to include an indication relating to a pathological entity, such as, for example, a lesion, on a terminal on which a medical image is displayed, and a method for displaying a medical image by using the same. The medical device includes a display device, a communication device which communicates with an external device, and a controller which displays an image which includes the indication relating to a pathological entity on the display device when the communication device receives image information relating to a subject. 1. A medical device comprising:a display device;a communication device which communicates with an external device; anda controller which displays an image which includes an indication relating to a pathological entity on the display device when the communication device receives image information relating to a subject.2. The medical device according to claim 1 , wherein the controller displays an object relating to the image which includes the indication relating to the pathological entity on the display device.3. The medical device according to claim 2 , wherein the object comprises at least one of a thumbnail and a shortcut of the image which includes the indication relating to the pathological entity.4. The medical device according to claim 2 , wherein the controller displays the image which includes the indication relating to the pathological entity in an enlarged form on the display device when a command relating to the object is received.5. The medical device according to claim 4 , wherein the display device includes a touch screen claim 4 , andthe command relating to the object is received via a touch of the object displayed on the display device.6. The medical device according to claim 4 , wherein the medical device comprises an input device which includes at least one of a remote controller claim 4 , a mouse claim 4 , a keyboard claim 4 , a voice ...

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Номер записи: 24
30-05-2013 дата публикации

X-ray imaging apparatus, medical image processing apparatus and x-ray imaging method

Номер: US20130137974A1
Автор: Atsushi Gotoh, Kyojiro Nambu, Ryuji Zaiki, Takuya Sakaguchi
Принадлежит: Individual

According to one embodiment, an X-ray imaging apparatus includes an angle acquisition unit and an imaging unit. The angle acquisition unit is configured to acquire an inclined angle of an aorta of an object on a reference image. The imaging unit is configured to display an X-ray image with rotating an angle so as to make a travel direction of the aorta to be a horizontal direction, a vertical direction or a predetermined direction corresponding to a craft. The angle is rotated based on the inclined angle of the aorta.

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Номер записи: 25
06-06-2013 дата публикации

Image-based diagnosis assistance apparatus, method and program

Номер: US20130144160A1
Автор: Futoshi Sakuragi
Принадлежит: Fujifilm Corp

A morphology image representing the morphology of a specific organ including a tubular structure in the inside thereof and a function image representing a function level at each position in the organ are obtained. A structure region representing a structure dominating the organ is extracted from the morphology image. A specific partial region in the extracted structure region and a dominated region in the organ are determined, and the dominated region being dominated by a structure in the partial region. In that case, at least one of the partial region determination step and the dominated region determination step is performed by using the function image.

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Номер записи: 26
20-06-2013 дата публикации

Thoracic diagnosis assistance system and computer readable storage medium

Номер: US20130156158A1
Автор: Shintaro Muraoka, Sumiya Nagatsuka, Syou Noji, Tetsuo Shimada
Принадлежит: Konica Minolta Medical and Graphic Inc

Provided is a thoracic diagnosis assistance system. The system includes, an imaging unit, an extracting unit, a region dividing unit, an analysis unit and a display unit. The extraction unit extracts a lung field region from the plurality of successive image frames generated by the imaging unit. The region dividing unit divides the lung field region extracted by the extraction unit into a plurality of sub-regions and correlates the sub-regions among the plurality of image frames. The analysis unit performs an analysis of the sub-regions to calculate an inspiratory feature quantity and an expiratory feature quantity and to calculate a value of a ratio of the calculated inspiratory feature quantity to expiratory feature quantity and creates a histogram of the calculated ratio value. The display unit displays the histogram.

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Номер записи: 27
04-07-2013 дата публикации

3D DIGITAL ENDODONTICS

Номер: US20130171580A1
Автор: Vallotton Paul-Henri, Van Lierde Carl
Принадлежит:

A method and system are described for 3D digital endodontics characterized in that 3D imaging equipment such as a CT or MRI scanner, ultrasound or the like are used to digitize the infected tooth or teeth, a 3D representation of the root canal system is extracted from the image data and visualized on a computer screen, a surgical template is designed to guide the endodontic instruments to localize the root canal(s) intra-operatively and said guide is manufactured by means of a computer driven system (e.g. milling, rapid prototyping, etc.). 152.-. (canceled)53. A computer based method for 3D digital endodontics , 3D imaging equipment being used to digitize an image of an infected tooth or teeth to thereby form image data , the method comprising:providing a user interface to extract a 3D representation of a root canal system from the image data and to visualize the root canal system on a visual display unit, wherein the 3D representation of the root canal system is expressed in a user specified coordinate system;the user interface being adapted to enable design of a surgical template to guide endodontic instruments to localize the root canal intra-operatively based on the 3D representation of the root canal system.54. The method of claim 53 , further comprising manufacturing said template by means of a computer driven system claim 53 , wherein the computer driven system is a milling claim 53 , a rapid prototyping claim 53 , or layered manufacture system.55. The method of claim 53 , wherein digital templates of a plurality of root canal instruments are provided claim 53 , allowing 2D superimposed views of instruments and canal shapes or canal cross-sections for treatment planning and instrument selection.56. The method of claim 53 , wherein location of root canal orifices is determined by extracting the root canal system from the image data.57. The method of claim 56 , wherein the step of extracting is carried out by indicating points along the axis of the root canal ...

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Номер записи: 28
18-07-2013 дата публикации

Apparatus and method for decoding sensory and cognitive information from brain activity

Номер: US20130184558A1
Автор: Jack L. Gallant, Kendrick Kay, Ryan Prenger, Thomas Naselaris
Принадлежит: UNIVERSITY OF CALIFORNIA

Decoding and reconstructing a subjective perceptual or cognitive experience is described. A first set of brain activity data produced in response to a first brain activity stimulus is acquired from a subject using a brain imaging device and converted into a corresponding set of predicted response values. A second set of brain activity data produced in response to a second brain activity stimulus is acquired from a the subject and decoded using a decoding distribution and the probability the second set of brain activity data corresponds to said predicted response values is determined. The second set of brain activity stimuli is then reconstructed based on the probability of correspondence between the second set of brain activity data and the predicted response values.

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Номер записи: 29
25-07-2013 дата публикации

RADIATION MEASURING SYSTEM BASED ON OPTIMAL MEASUREMENT GEOMETRY AND RADIATION MEASURING METHOD USING THE SAME

Номер: US20130190620A1
Автор: Kim Hee Geun, Kong Tae Young
Принадлежит: KOREA HYDRO & NUCLEAR POWER CO., LTD.

A radiation measuring system includes a whole-body counter having upper and lower radiation detectors that are located in front of a measurement space, which has an inlet passage and is located in a housing, and that detects respective internal radiations of a measurement target and first and second internal radiations of a body region corresponding to one of a thyroid gland, a lung, a whole body, or a hypogastrium, and a processor controlling determination of an internal radioactive contamination location of the measurement target, based on a ratio of the first and second internal radiations, applying the optimal measurement geometry corresponding to the ratio of the first and second internal radiations, and detecting the first and second internal radiations of a body region corresponding to the internal radioactive contamination location. 1. A radiation measuring system comprising: the measurement space has an inlet passage and is located in a housing, and', 'the counter detects respective internal radiations of a measurement target and first and second internal radiations of a human body region corresponding to one of a thyroid gland, a lung, a whole body, and a hypogastrium; and, 'a whole-body counter having upper and lower radiation detectors that are installed in front of a measurement space, wherein'} determining an internal radioactive contamination location of the measurement target, based on a ratio of the first and second internal radiations,', 'applyling an optimal measurement geometry, corresponding to the ratio of the first and second internal radiations, and', 'detecting the first and second internal radiations of a body region corresponding to the internal radioactive contamination location that has been determined., 'a processor'}2. The radiation measuring system according to claim 1 , wherein the processor includes:a memory storing lookup tables in which first, second, third, and fourth ranges, to which the ratio of the internal radiations of the ...

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Номер записи: 30
01-08-2013 дата публикации

METHOD FOR DETERMINING POSITION OF ORTHODONTICS MINI-SCREW AND APPARATUS THEREOF

Номер: US20130196280A1
Автор: Han Jae Il, Jeong Jeong Woon, KIM Jin Kook
Принадлежит: INFINITT HEALTHCARE CO., LTD.

Disclosed herein are a method and apparatus for determining the location of an orthodontic fastener. In the method, a first location on a tooth and a second location on alveolar bone are set on a patient's medical image. Thereafter, a first rectilinear line including two points, that is, the set first and second locations, is generated. Thereafter, bone density values at the locations of the alveolar bone on the generated first rectilinear line are computed using the medical image. Finally, the location of the alveolar bone at which a first fastener is inserted is determined based on the computed bone density values. 1. A method of determining a location of an orthodontic fastener , comprising:setting, by a processor, a first location on a tooth and a second location on alveolar bone on a patient's medical image;generating, by the processor, a first rectilinear line including two points, that is, the set first and second locations;computing, by the processor, bone density values at locations of the alveolar bone on the generated first rectilinear line using the medical image; anddetermining, by the processor, a location of the alveolar bone at which a first fastener is inserted based on the computed bone density values.2. The method of claim 1 , further comprising displaying claim 1 , by the processor claim 1 , the computed bone density values at the locations of the alveolar bone on a screen on which the medical image is displayed.3. The method of claim 2 , wherein displaying further comprises claim 2 , when a third location on the first rectilinear line is selected in response to user input claim 2 , displaying a bone density value at the selected third location in synchronization of the third location.4. The method of claim 1 , wherein determining further comprises determining a location having a maximum one of the bone density values to be the location at which the first fastener will be inserted.5. The method of claim 1 , wherein determining further comprises ...

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Номер записи: 31
15-08-2013 дата публикации

Medical diagnostic imaging apparatus

Номер: US20130208863A1
Автор: Kazuo Imagawa, Masanori Matsumoto, Reiko HASHIMOTO, Ryuji Zaiki, Yuichiro Watanabe
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

A medical diagnostic imaging apparatus of an embodiment includes: an imaging unit configured to capture a medical image of a blood vessel in which an artificial valve is to be placed; a display unit configured to display the medical image captured by the imaging unit; a storage unit configured to store artificial valve information about a length of the artificial valve; and a control unit configured to find a length of the artificial valve in the medical image displayed by the display unit, and to judge whether or not the length thus found and the length in the artificial valve information stored in the storage unit are the same.

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Номер записи: 32
19-09-2013 дата публикации

ROBUST MULTI-OBJECT TRACKING USING SPARSE APPEARANCE REPRESENTATION AND ONLINE SPARSE APPEARANCE DICTIONARY UPDATE

Номер: US20130245429A1
Автор: Chen Terrence, Comaniciu Dorin, Strobel Norbert, Wu Wen, ZHANG LEI
Принадлежит:

A computer-implemented method for tracking one or more objects in a sequence of images includes generating a dictionary based on object locations in a first image included in the sequence of images. One or more object landmark candidates are identified in the sequence of images and a plurality of tracking hypothesis for the object landmark candidates are generated. A first tracking hypothesis is selected from the plurality of tracking hypothesis based on the dictionary. 1. A computer-implemented method for tracking one or more objects in a sequence of images , the method comprising:generating, by a computer, a dictionary based on object locations in a first image included in the sequence of images;identifying, by the computer, one or more object landmark candidates in the sequence of images;generating, by the computer, a plurality of tracking hypothesis for the object landmark candidates; andselecting, by the computer, a first tracking hypothesis from the plurality of tracking hypothesis based on the dictionary.2. The method of claim 1 , wherein the selecting the first tracking hypothesis from the plurality of tracking hypothesis based on the dictionary comprises:determining, by the computer, a confidence score for each of the tracking hypothesis; andselecting, by the computer, the tracking hypothesis with the highest confidence score as the first tracking hypothesis.3. The method of claim 1 , further comprising:determining, by the computer, a foreground portion of the first image comprising portions of the image corresponding to the object locations; anddetermining, by the computer, a background portion of the first image which excludes the foreground portion.4. The method of claim 3 , further comprising:applying, by the computer, a steerable filter or a pre-processing method to the background portion of the first image to create a filtered image,wherein the dictionary is generated based on the filtered image.5. The method of claim 3 , further comprising:applying, ...

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Номер записи: 33
17-10-2013 дата публикации

METHOD AND SYSTEM OF IMAGING AND/OR DIAGNOSING A BONE FROM A RECONSTRUCTED VOLUME IMAGE

Номер: US20130272594A1
Автор: Shahar Ron, Sharir Amnon, Stern Tomer, Zelzer Elazar
Принадлежит:

A method of imaging and/or diagnosing intrabony space. The method comprises providing a reconstructed volume image depicting a cylindrical bone, identifying a segment depicting the cylindrical bone in the reconstructed volume image, transforming the segment to generate a three-dimensional (3D) model which aligns a representation of each of a plurality of radial portions having a plurality of different angular orientations of the cylindrical bone in parallel to a common axis, generating at least one coded image mapping of at least one osteo related characteristic of the cylindrical bone along each the radial axis, and outputting the at least one coded image. 1. A method of imaging and/or diagnosing intrabony space , comprising:providing a reconstructed volume image depicting a cylindrical bone;identifying a segment depicting said cylindrical bone in said reconstructed volume image;transforming said segment to generate a three-dimensional (3D) model which aligns a representation of each of a plurality of radial portions having a plurality of different angular orientations of said cylindrical bone in parallel to a common axis;performing a calculation of at least one osteo related characteristic of said cylindrical bone along each said radial portion using said 3D model, said at least one at least one osteo related characteristic comprises at least one of unweighted bone mineral content (uwBMC) of said cylindrical bone along each said radial portion and bone mineral density (BMD) of said cylindrical bone along each said radial portion;generating, based on said calculation, at least one coded image mapping of said at least one osteo related characteristic of said cylindrical bone along each said radial portion; andoutputting said at least one coded image.2. The method of claim 1 , wherein said at least one coded image is color coded.3. (canceled)4. The method of claim 1 , further comprising analyzing said at least one coded image to automatically estimate at least one ...

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Номер записи: 34
24-10-2013 дата публикации

Method and system to improve visceral adipose tissue estimate by measuring and correcting for subcutaneous adipose tissue composition

Номер: US20130281820A1
Автор: Randall Kenneth Payne
Принадлежит: General Electric Co

A method and system for estimating the visceral adipose tissue (VAT) of a subject comprising performing a dual-energy X-ray scan of the subject; generating at least one image of the subject from the dual-energy X-ray scan; identifying a region of interest; dividing the region of interest into a plurality of sections; generating a soft tissue composition profile for each of the plurality of sections, wherein the soft tissue composition profile identifies an edge of the subject, an outer edge of an abdominal wall of the subject, a subcutaneous region and a subcutaneous thickness for each of the plurality of sections; determining a subcutaneous adipose tissue (SAT) composition for each of the plurality of sections, wherein a subcutaneous fat fraction is used to calculate the subcutaneous fat and lean masses and/or volumes; and determining a VAT based on the determined SAT composition for each of the plurality of sections.

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Номер записи: 35
07-11-2013 дата публикации

Truncation compensation for iterative cone-beam ct reconstruction for spect/ct systems

Номер: US20130294570A1
Автор: Eberhard Sebastian Hansis
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

A multiple modality imaging system ( 10 ) includes a cone-beam computed tomography scanner ( 24, 30 ) which acquires CT projection data of a subject ( 22 ) in an examination region ( 18 ) and a nuclear imaging scanner which concurrently/subsequently acquires nuclear projection data of the subject in the examination region. A CT reconstruction processor ( 34 ) is programmed to perform the steps of: in the CT projection data, defining a field-of-view (FoV) with a voxel grid in a trans-axial direction; determining the subject's maximum trans-axial extents; generating an extending FoV by extending the voxel grid of the FoV to at least one extended region outside the FoV that encompass at least the determined maximum trans-axial extents and all attenuation in the trans-axial direction; and iteratively reconstructing the CT projection data into an attenuation map of the extended FoV. At least one nuclear reconstruction processor ( 44 ) is programmed to correct the acquired nuclear projection data based on the iteratively reconstructed attenuation map.

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Номер записи: 36
14-11-2013 дата публикации

Method and apparatus for processing of stroke ct scans

Номер: US20130303900A1
Автор: Wieslaw Lucjan Nowinski
Принадлежит: Agency for Science Technology and Research Singapore

An automatic technique for stroke identification, localization, quantification and prediction, has the steps of receiving a CT scan, pre-processing it to extract the brain region corresponding to a brain volume of a subject who has suffered a stroke; identifying whether a hemorrhage is present in the brain volume and if so obtaining data characterizing the hemorrhage; otherwise identifying whether an infarct is present and if so obtaining data characterizing it; analyzing the results using a brain atlas; and, using the results of the analysis, obtaining at least one predictive value characterizing a prediction about the subject.

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Номер записи: 37
28-11-2013 дата публикации

BONE DENSITY MEASUREMENT

Номер: US20130315371A1
Автор: Blau Arno, Simon Bernd
Принадлежит:

A method and device for determining a tissue density based on an x-ray image including a reference body. The method uses a device for receiving an X-ray image of a region of interest and information about a theoretical distribution of more or less dense tissue in the region of interest. Pixels of the X-ray image related to tissue are compared with a pixel related to a reference body. The actual distribution of tissue density is estimated based on the received information and the result of the pixel comparison. 1. A method for determining a tissue density , the method comprising:receiving a first X-ray projection image generated from a first imaging direction, the first image including a region of interest of a subject and a reference body, the reference body having a predetermined density,wherein the X-ray projection image comprises a plurality of pixels, wherein each of the pixels is associated with one X-ray beam and represents an attenuation of the X-ray beam along its path through the subject,receiving information about a theoretical distribution of harder tissue and softer tissue to be expected along the path of the X-ray beam,comparing the X-ray attenuation of one of the pixels related to the region of interest with one of the pixels related to the reference body, andestimating an actual distribution of harder tissue and of softer tissue along the path of the X-ray beam related to the pixel related to the region of interest, based on the compared X-ray beam attenuation and the theoretical distribution of harder and softer tissue.2. The method of claim 1 , wherein the steps of comparing and of estimating are performed for each pixel of the region of interest.3. The method of claim 2 , further comprising the step ofreceiving a second X-ray projection image generated from a second imaging direction which is different to the first imaging direction, the second image including the region of interest,wherein the estimation of the actual distribution of harder tissue ...

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Номер записи: 38
28-11-2013 дата публикации

Medical image diagnosis apparatus, medical image display apparatus, medical image processing apparatus, and medical image processing program

Номер: US20130315455A1
Автор: Misako Wakai
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

An inner wall extractor extracts the inner wall of a vital tissue based on medical image data. An outer wall extractor extracts the outer wall of the vital tissue based on the medical image data. A first raised portion calculator obtains information including the presence of a first raised portion in which the inner wall of the vital tissue is raised inward, based on the extracted inner wall of the vital tissue. A second raised portion calculator obtains information including the presence of a second raised portion in which the outer wall of the vital tissue is raised outward, based on the extracted outer wall of the vital tissue. A display controller superimposes the information of the first raised portion obtained by the first raised portion calculator and the information of the second raised portion obtained by the second raised portion calculator on an image of the vital tissue, and causes the image to be displayed on a display unit.

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Номер записи: 39
12-12-2013 дата публикации

Automatic reduction of interfering elements from an image stream of a moving organ

Номер: US20130329977A1
Автор: Alexander Steinberg, David Tolkowsky, Eldad Klaiman, Ran Cohen, Sagiv PHILIPP
Принадлежит: Sync Rx Ltd

Apparatus and methods are described for imaging a portion of a body of a subject that undergoes a motion cycle. A plurality of image frames of the portion are acquired. The image frames are enhanced with respect to a first given feature of the image frames, by (a) image tracking the image frames with respect to the first given feature, (b) identifying a second given feature in each of the image frames, and (c) in response to the identifying, reducing visibility of the second given feature in the image frames. The image frames that (a) have been image tracked with respect to the first given feature, and (b) have had reduced therein the visibility of the second given feature, are displayed as a stream of image frames. Other embodiments are also described.

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Номер записи: 40
12-12-2013 дата публикации

THORACIC DIAGNOSIS ASSISTANCE INFORMATION GENERATION METHOD, THORACIC DIAGNOSIS ASSISTANCE SYSTEM, AND DYNAMIC STATE IMAGE PROCESSING APPARATUS

Номер: US20130331725A1
Автор: MURAOKA Shintaro, NOJI Sho
Принадлежит: KONICA MINOLTA, INC.

According to one implementation, a thoracic diagnosis assistance information generation method includes the following. A dynamic state of a chest portion is captured to generate frame images. Air velocity is calculated by dividing a lung field region extracted from one frame region into small regions, corresponding the small regions among the frame images, and calculating a feature amount showing air velocity. Air velocity distribution is calculated by dividing the lung field region into block regions in a trunk axis direction, calculating a feature amount showing air velocity of each block region based on a feature amount showing the air velocity of the small regions in the divided block regions, and calculating a feature amount showing air velocity distribution of the lung field region based on the calculated feature amount showing the air velocity of each block region. 1. A thoracic diagnosis assistance information generation method comprising:capturing a dynamic state of a chest portion including at least one breathing cycle using a detector with detecting elements aligned two dimensionally to generate a plurality of successive frame images;extracting a lung field region from one frame image among the plurality of frame images generated in the capturing;calculating air velocity by dividing the lung field region extracted in the extracting into a plurality of small regions, corresponding the small regions among the plurality of frame images, performing analysis for each corresponded small region, and calculating a feature amount showing air velocity for each small region; andcalculating air velocity distribution by dividing the lung field region into a plurality of block regions in a trunk axis direction, calculating a feature amount showing air velocity of each block region based on a feature amount showing the air velocity of the plurality of small regions included in the divided block regions, and calculating a feature amount showing air velocity distribution ...

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Номер записи: 41
19-12-2013 дата публикации

MEDICAL IMAGING DEVICES, METHODS, AND SYSTEMS

Номер: US20130338496A1
Автор: Hielscher Andreas H., Kim Hyun K., Montejo Ludguier D.
Принадлежит: The Trustees of Columbia University in the City New York

Devices, methods, and systems for providing optical imaging to detect and characterize anatomical and/or physiological indicators, such as, rheumatoid arthritis, and devices, methods and systems for computer aided detection and diagnosis of tomographic images. Embodiments for optimizing machine classification of tissue samples are described. Embodiments for using machine classification techniques to classify indicators present in optical tomographic images are described. 1. A method of classifying , with respect to a predefined disease , an optical tomographic image of a living sample tissue , comprising:using optical tomographic imaging to generate a set of images of tissue samples, including diseased ones having the predefined disease and healthy ones not having the predefined disease;extracting a plurality of features from the images, the features representing optical properties of a sample tissue;statistically analyzing each of the features and selecting responsively to a result of the statistically analyzing, the features providing greater predictive accuracy as to the presence of the disease than other features when applied to a predefined classifier;using the subset of features with the predefined classifier to classify further tissue samples;wherein the images include, for each tissue sample, multiple structured images combined, to form at least one of the features, into a planar image from which the at least one of the features is extracted.2. The method of claim 1 , wherein the statistically analyzing includes applying an evolution algorithm in which an initial feature combination is chosen as the first generation parents; all possible mutants are generated by adding claim 1 , dropping claim 1 , or replacing one feature from the parent combination; of all the mutants and their parent claim 1 , the combination with the highest Youden index become the parent in next generation; and repeating until the Youden index stops improving.3. The method of claim 1 , ...

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Номер записи: 42
02-01-2014 дата публикации

TRACKING BRAIN DEFORMATION DURING NEUROSURGERY

Номер: US20140003698A1
Автор: Babic Drazenko, Ruijters Daniel Simon Anna
Принадлежит: KONINKLIJKE PHILIPS N.V.

The present invention relates to the determination of brain deformation. The invention relates in particular to a device for tracking brain deformation, an imaging system for tracking brain deformation, a method for tracking brain deformation, a method of operating a device for tracking brain deformation, as well as to a computer program element and a computer readable medium. For providing enhanced information about the brain deformation, a first 3D representation () of a cerebrovascular vessel structure of a region of interest of an object is provided () and () a second 3D representation () of the cerebrovascular vessel structure. Then, at least a part of the first 3D representation is elastically three dimensionally registered () with at least a part of the second 3D representation. A deformation field () of the cerebrovascular vessel structure is determined () based on the elastic registration. The determined vessel deformation is applied () to a brain structure representation to determine a deformation () of the cerebral structure. For example, planning data () for an intervention of the cerebral structure is provided () and the determined deformation of the cerebral structure is applied () to the planning data to generate deformation adjusted planning data (). 1. A device for tracking brain deformation , comprising:a processing unit; andan interface unit;wherein the interface unit is adapted to provide a first 3D representation of a cerebrovascular vessel structure of a region of interest of an object to the processing unit; and to provide a second 3D representation of the cerebrovascular vessel structure to the processing unit; andwherein the processing unit has a register unit adapted to elastically three-dimensionally register at least a part of the first 3D representation with at least a part of the second 3D representation;wherein the processing unit has a determination unit adapted to determine a deformation field of the cerebrovascular vessel structure ...

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Номер записи: 43
09-01-2014 дата публикации

Method and apparatus for isolating a potential anomaly in imaging data and its application to medical imagery

Номер: US20140010430A1
Автор: Florent Andre Robert Chandelier, Thomas Bernard Pascal Vincent
Принадлежит: Dog Microsystems Inc

A method for isolating a potential anomaly in imaging data is disclosed, the method comprising providing a set of at least one given anomaly property representative of a given anomaly; providing a anomaly property identifier for identifying each of the at least one given anomaly property; in the imaging data, isolating a first zone having a first property and a group of at least one other zone, each of the at least one other zone having a corresponding property different than the first property; in the imaging data, and resulting from the isolation of a first zone and a group of at least one other zone, providing a transition zone selected from a group consisting of: a closed zone separating the first zone and the group of at least one other zone; and a closed zone extending in one of the first zone and the group of at least one other zone; applying the anomaly property identifier for identifying each of the at least one given anomaly property on at least the transition zone for providing a computed indication for a selected zone, the selected zone being at least the transition zone; determining if the computed indication for the selected zone is concording with each of the at least one given anomaly property; and if the computed indication for the selected zone is concording, assigning an indication of potential anomaly candidate zone to the selected zone to thereby isolate the potential anomaly.

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Номер записи: 44
16-01-2014 дата публикации

Systems and methods for performing image type recognition

Номер: US20140016846A1
Автор: András Kriston, Ferenc Kovacs, Tamás Blaskovics
Принадлежит: General Electric Co

A method for determining image information for an image of an object includes obtaining at least one image of an object of interest, automatically determining an image type and a presence or absence of a contrast agent, automatically generating a label that indicates the image type and the presence or absence of the contrast agent, and modifying the at least one image to include the label. A system and non-transitory computer readable medium are also described herein.

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Номер записи: 45
16-01-2014 дата публикации

Voxel-Resolution Myocardial Blood Flow Analysis

Номер: US20140016850A1
Автор: John M. M. ANDERSON
Принадлежит: Individual

A myocardial blood flow analysis scan includes incorporating a pharmacological kinetic model with the standard factor analysis model where each time activity curve is assumed to be a linear combination of factor curves. Pharmacological kinetics based factor analysis of dynamic structures (K-FADS) model can be applied, whereby a means for estimating factor curves in the myocardium that are physiologically meaningful is provided. Additional optional aspects include performing a discretization to transform continuous-time K-FADS model into a discretetime K-FADS model and application of an iterative Voxel-Resolution myocardial blood flow (V-MBF) algorithm. A V-MBF algorithm based on a model that accounts for the fact that the shape of TACs due to ischemic and normal tissue are different can be included.

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Номер записи: 46
16-01-2014 дата публикации

Image processing apparatus, x-ray radiographic apparatus, and image processing method

Номер: US20140016851A1
Автор: Fumiki Nakano
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

An image processing apparatus has an extraction unit, a base calculation unit, a recommended-region calculation unit and a display unit. The extraction unit extracts a region including a branch artery of a subject based on volume data. The base calculation unit calculates a base of the branch artery based on the region including the branch artery. The recommended-region calculation unit calculates a recommended region for placing a balloon of a balloon catheter based on the volume data and the base. The display unit aligns and displays the recommended region on a basic image.

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Номер записи: 47
16-01-2014 дата публикации

Method and device for comparing radiographic images

Номер: US20140016852A1
Автор: Donald A. Soboleski
Принадлежит: Donald A. Soboleski

The present disclosure provides a method of standardizing a digital radiographic medical image, including obtaining a digital radiographic image of a variable attenuation plate to provide at least one reference value of at least one image characteristic, such as optical density and contrast, and standardizing the digital radiographic medical image against the reference values. Also provided are methods for comparing two or more radiographic images including standardizing the images against at least one reference value of at least one image characteristic obtained from a digital radiographic image of a variable attenuation plate.

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Номер записи: 48
23-01-2014 дата публикации

Computation of Hemodynamic Quantities From Angiographic Data

Номер: US20140024932A1
Автор: BOESE Jan, Comaniciu Dorin, Georgescu Bogdan, Itu Lucian Mihai, Kamen Ali, Mihalef Viorel, Rapaka Saikiran, Redel Thomas, Sharma Puneet, Zheng Xudong
Принадлежит:

Methods for computing hemodynamic quantities include: (a) acquiring angiography data from a patient; (b) calculating a flow and/or calculating a change in pressure in a blood vessel of the patient based on the angiography data; and (c) computing the hemodynamic quantity based on the flow and/or the change in pressure. Systems for computing hemodynamic quantities and computer readable storage media are described. 1. A computer-implemented method for computing a hemodynamic quantity , the method comprising:acquiring angiography data from a patient;calculating, by a processor, a flow and/or a change in pressure in a blood vessel of the patient based on the angiography data; andcomputing, by the processor, the hemodynamic quantity based on the flow and/or the change in pressure.2. The computer-implemented method of wherein the hemodynamic quantity comprises fractional flow reserve.3. The computer-implemented method of wherein at least a portion of the angiography data is acquired when the patient is at rest.4. The computer-implemented method of wherein at least a portion of the angiography data is acquired when the patient is in a state of hyperemia.5. The computer-implemented method of wherein the flow comprises hyperemic flow.6. The computer-implemented method of wherein the blood vessel comprises a stenosis.7. The computer-implemented method of further comprising calculating both the flow and the change in pressure.8. The computer-implemented method of wherein the angiography data is acquired at a first physiological state of the patient claim 7 , and wherein the flow corresponds to a second physiological state of the patient that is different from the first physiological state of the patient.9. The computer-implemented method of wherein the first physiological state comprises a rest state and wherein the second physiological state comprises a hyperemic state.10. The computer-implemented method of wherein the calculating of the flow is based on movement of a contrast ...

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Номер записи: 49
30-01-2014 дата публикации

Displaying Computer-Aided Detection Information With Associated Breast Tomosynthesis Image Information

Номер: US20140033126A1
Автор: Chui Haili, Hitzke Georgia K., Kreeger Kevin A., Marshall Julian
Принадлежит: Hologic, Inc.

Methods, systems, and related computer program products for processing and displaying computer-aided detection (CAD) information associated with medical breast x-ray images, such as breast x-ray tomosynthesis volumes, are described. An interactive graphical user interface for displaying a tomosynthesis data volume is described that includes a display of a two-dimensional composited image having slabbed sub-images spatially localized to marked CAD findings. Also described is a graphical navigation tool for optimized CAD-assisted viewing of the data volume, comprising a plurality of CAD indicator icons running near and along a slice ruler, each CAD indicator icon spanning a contiguous segment of the slice ruler and corresponding in depthwise position and extent to a subset of image slices spanned by the associated CAD finding, each CAD indicator icon including at least one single-slice highlighting mark indicating a respective image slice containing viewable image information corresponding to the associated CAD finding. 1. A computer-implemented method for processing and displaying information associated with breast x-ray images acquired with an imaging device , the method comprising:receiving a plurality of two-dimensional breast x-ray tomosynthesis reconstructed image slices corresponding to a respective plurality of slice depths in a compressed breast volume;receiving a plurality of computer-aided detection (CAD) findings associated with the breast volume, each CAD finding identifying a subset of the image slices spanned by a suspected anatomical abnormality and locations therein of the suspected anatomical abnormality;displaying on a user display a two dimensional image comprising a single one of the received image slices or a plurality of depthwise adjacent ones of the received image slices slabbed together; an outline in miniaturized form of the breast volume, the outline having a depth dimension corresponding to a direction of compression and a lateral ...

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Номер записи: 50
20-02-2014 дата публикации

System and method for detecting materials or disease states using multi-energy computed tomography

Номер: US20140050378A1
Автор: AJAY Narayanan, Bipul Das, Carlos Eduardo Rochitte, Melissa Megumi Shiraishi Kuriki, Pedro Alves Lemos Neto, Roberto Caldeira Cury, Sandeep Dutta, Souma Sengupta, TOSHIHIRO Rifu
Принадлежит: General Electric Co, INSTITUTO DO CORACAO

The disclosed embodiments relate to characterizing or quantifying an element or composition of interest within an imaged volume. In accordance with one embodiment, high and low energy images are acquired of a volume of interest using a polychromatic emission source. The high and low energy images are processed to generate monochromatic images. Based on the observed attenuation within the monochromatic images, one or more elements or compositions of interest are characterized within the imaged volume.

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Номер записи: 51
20-02-2014 дата публикации

SINGLE SCAN MULTI-PROCEDURE IMAGING

Номер: US20140050383A1
Автор: MCKNIGHT Douglas B., NAYPAUER Thomas John, Virmani Sunny
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS N.V.

A method includes receiving a signal indicative of a single user selected imaging protocol for scanning a patient. The imaging protocol includes parameters for two or more of a bone mineral density, a fat composition, or an aortic calcium imaging procedures. The method further includes performing a single scan of the patient using the single user selected protocol. The method further includes generating a single set of image data for the two or more of a bone mineral density, a fat composition, or an aortic calcium imaging procedures. 1. A method , comprising:receiving a signal indicative of a single user selected imaging protocol for scanning a patient,wherein the imaging protocol includes parameters for two or more of a bone mineral density, a fat composition, or an aortic calcium imaging procedures;performing a single scan of the patient using the single user selected protocol; andgenerating a single set of image data for the two or more of the bone mineral density, the fat composition, or the aortic calcium imaging procedures.2. The method of claim 1 , further comprising:receiving a signal indicative of one or more user selected analysis algorithms, wherein the one or more user selected analysis algorithms include at least two of a bone mineral density algorithm, a fat composition algorithm, or an aortic calcium algorithm; andprocessing the single set of image data using the one or more user selected analysis algorithms, producing a processing result.3. The method of claim 2 , wherein the processing result includes at least one of a bone mineral density image claim 2 , a fat composition algorithm image claim 2 , or an aortic calcium image.4. The method of claim 3 , further comprising:concurrently displaying the at least one of the bone mineral density image, the fat composition algorithm image, or the aortic calcium image in a same view port of a graphical user interface.5. The method of claim 3 , further comprising:concurrently displaying the at least one of ...

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Номер записи: 52
06-03-2014 дата публикации

Method and apparatus for determining treatment margin of target area

Номер: US20140064449A1
Автор: Jie Zheng, Xiang Deng
Принадлежит: Individual

Disclosed is a method and apparatus for determining a tumor ablation margin. The method includes acquiring an angiography image before tumor ablation and an angiography image after tumor ablation when tumor ablation is performed, registering the angiography image before tumor ablation and the angiography image after tumor ablation, and determining the tumor ablation margin according to the relative positions of the tumor area in the angiography image before tumor ablation and the ablation area in the angiography image after tumor ablation after registration. Using an embodiment, one directly determines the tumor ablation margin during tumor ablation, thus improving the efficiency and success rate of tumor ablation.

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Номер записи: 53
13-03-2014 дата публикации

Image processing system, image processing apparatus, and image processing method

Номер: US20140071132A1
Автор: Akira Adachi, Takumi Hara, Tatsuo Maeda, Yasuhiro Noshi
Принадлежит: Toshiba Corp, Toshiba Medical Systems Corp

An image processing system according to an embodiment includes a stereoscopic display apparatus, a rendering processor, and a display controller. The stereoscopic display apparatus displays a stereoscopic image enabled for a stereoscopic vision using a plurality of parallax images. The rendering processor generates a plurality of parallax images by applying a rendering process to volume data that is three-dimensional medical image data from a plurality of viewpoint positions having different relative positions with respect to the volume data. The display controller causes the stereoscopic display apparatus to display a graphic image that is an image of a given graphic indicating a depth-direction position of a cursor that is operable by a given input unit in a three-dimensional stereoscopic image space in which a stereoscopic image is displayed, together with the parallax images.

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Номер записи: 54
13-03-2014 дата публикации

Methods and systems for determining physiological information based on statistical regression analysis

Номер: US20140073940A1
Автор: Fernando Rodriguez-Llorente, Nicholas James Wooder, Pirow Engelbrecht
Принадлежит: Nellcor Puritan Bennett LLC

A physiological monitoring system may determine physiological information, such as physiological rate information, from a physiological signal. The system may select two segments of the physiological signal, shifted in time relative to one another by a lag value, and determine a correlation value between the two segments. The system may determine a metric based on the segments, and determine correlation information based on the correlation value and the metric. The metric may be indicative of how well the segments are correlated, providing additional information relative to the correlation value. Based on the metric, the system may modify the correlation value, determine a confidence value, or determine other information. The system may determine physiological rate information based on the correlation information.

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Номер записи: 55
20-03-2014 дата публикации

MYOCARDIAL CLUSTERIFICATION AND ORIENTATION

Номер: US20140081132A1
Автор: Dwivedi Shekhar
Принадлежит: KONINKLIJKE PHILIPS N.V.

A cardiac imaging method includes acquiring a projection image representation which includes a myocardium (S). The myocardium is segmented and a mask is generated (S). The mask is optimized (S). A blood pool is determined from the optimized mask (S) and the mask is skeletonized based on a clusterfication of the myocardial slices (S). The center of mass is determined (S) from the blood pool and the skeletonized mask. Myocardial parameters are determined (S) from the skeletonized mask. 1. A method for cardiac imaging , comprising:acquiring functional imaging data of a subject, the functional imaging data including at least a myocardium;determining the pose and geometry of the myocardium;estimating diagnostic parameters of the myocardium based on the determined pose and geometry.2. The method according to claim 1 , wherein the step of determining the pose and geometry of the myocardium includes:segmenting a left ventricle;generating a left ventricle myocardial mask;computing a center of mass of the left ventricle;skeletonizing the left ventricle myocardial mask to generate a myocardial skeleton;pruning the myocardial skeleton.3. The method according to claim 2 , wherein pruning the myocardial skeleton includes:calculating a distance from each non-zero skeletal pixel to the center of mass of the left ventricle;binning the calculated distances into distance bins;generating a histogram from a number of pixels in each of the distance bins;determining from the histogram a lower bin threshold, an upper bin threshold, a low bin frequency threshold, and an upper bin frequency threshold;removing from the skeleton pixels outside of the lower and upper bin thresholds and the lower and upper bin frequency thresholds.4. The method according to claim 2 , further including:correcting the left ventricle mask for boundary thickening and myocardial gaps.5. The method according to claim 2 , further including:segmenting the left ventricle mask to generate a stack of left ventricle mask ...

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Номер записи: 56
27-03-2014 дата публикации

Apparatus and method for estimating object information

Номер: US20140086386A1
Автор: Dong Goo Kang, Seok Min Han, Sung Su Kim, Young Hun Sung
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An apparatus and method for estimating object information is provided. The object information estimating apparatus includes a database which stores phantom information obtained by projecting a first energy X-ray on a phantom, an input unit which receives first object information obtained by projecting the first energy X-ray on an analysis object, and which receives information on a thickness of the analysis object, and an estimating unit which estimates second object information based on the phantom information, the first object information, and the information on the thickness.

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Номер записи: 57
27-03-2014 дата публикации

X-RAY CT APPARATUS

Номер: US20140086470A1
Автор: Mukumoto Go
Принадлежит:

It is to provide an X-ray CT apparatus, which can realize accuracy and efficiency in a puncturing work. An X-ray CT apparatus creates volume data based on a result obtained by X-ray scanning of a subject E for medical practice with a puncture needle. The X-ray CT apparatus comprises an image processor , and a display controller . The image processor creates an image of the subject E obtained by scanning, which is performed in a state that the puncture needle is being inserted to the subject E, based on the volume data. The image processor also creates a new planned image, based on displacement between a position of a specific region on an image based on second volume data and a position of a corresponding specific region in a first planned image, which is created based on a first volume data in advance and includes an image I of an insert passage for the puncture needle with respect to the subject E. The display controller allows a display to display a new planned image. 1. An X-ray CT apparatus configured to create volume data based on a result obtained by X-ray scanning of a subject for medical practice with a puncture needle , comprising:an image processor configured to create, based on the volume data, an image of the subject obtained by scanning in a state such that the puncture needle is being inserted to the subject; anda display controller configured to allow the image to be displayed on a display, wherein:the image processor is configured to create a new planned image based on displacement between a position of a specific region in an image based on particular volume data and a position of a corresponding specific region in a first planned image, which is created based on different volume data in advance and includes an image of an insert passage for the puncture needle with respect to the subject; andthe display controller is configured to allow the display to display the new planned image.2. The X-ray CT apparatus according to claim 1 , wherein:the image ...

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Номер записи: 58
03-04-2014 дата публикации

APPARATUS AND METHODS FOR DETERMINING A PLURALITY OF LOCAL CALIBRATION FACTORS FOR AN IMAGE

Номер: US20140094689A1
Автор: Cohen Ran, KLAIMAN Eldad, STEINBERG Alexander, TOLKOWSKY David
Принадлежит: SYNC-RX, LTD.

Apparatus and methods are described including acquiring a first set of extraluminal images of a lumen, using an extraluminal imaging device. At least one of the first set of images is designated as a roadmap image. While an endoluminal device is being moved through the lumen, a second set of extraluminal images is acquired. A plurality of features that are visible within images belonging to the second set of extraluminal images are identified. In response to the identified features in the images belonging to the second set of extraluminal images, a plurality of local calibration factors associated with respective portions of the roadmap image are determined. Other applications are also described. 134-. (canceled)35. Apparatus comprising:an endoluminal device configured to be moved through a lumen of a subject's body;one or more extraluminal imaging devices configured to acquire extraluminal images of the lumen;a display; and [ a first set of extraluminal images of the lumen, the lumen being visible in at least some of the first set of images, and', 'a second set of extraluminal images of the endoluminal device inside the lumen, the second set of extraluminal images being acquired while the endoluminal device is being moved through the lumen,, 'to receive from the one or more extraluminal imaging devices, 'to designate at least one of the first set of images as a roadmap image,', 'for at least a portion of the images belonging to the second set of extraluminal images, to identify within the image a plurality of the features that are visible within the image;', 'in response to the identified features in the images belonging to the second set of extraluminal images, to determine a plurality of local calibration factors associated with respective portions of the roadmap image, and', 'based upon one or more of the determined local calibration factors, to generate an output on the display., 'at least one processor configured36. The apparatus according to claim 35 , ...

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Номер записи: 59
03-04-2014 дата публикации

IMAGE PROCESSING DEVICE, RADIOGRAPHIC IMAGE CAPTURING SYSTEM, COMPUTER-READABLE MEDIUM AND IMAGE PROCESSING METHOD

Номер: US20140094696A1
Автор: FUKUDA Wataru
Принадлежит: FUJIFILM Corporation

An image processing device includes: an acquisition unit that acquires plural projection images captured by applying radiation from multiple directions, while moving a radiation applying unit, with respect to an object between the radiation applying unit and a radiation detector and by detecting the radiation via the radiation detector; a tomographic image generating unit that generates tomographic images of the object by reconstructing them from the acquired plural projection images; a projection image mask generating unit that generates plural projection image masks for separating an object region and a direct incidence region of each of the plural projection images; a tomographic image mask generating unit that reconstructs and generates, from the plural projection image masks, tomographic image masks for separating the object region and the direct incidence region of the tomographic images; and a masking unit that performs masking by applying the tomographic image masks to the tomographic images. 1. An image processing device comprising:an acquisition unit that acquires plural projection images captured by applying radiation from multiple directions, while moving a radiation applying unit, with respect to an object between the radiation applying unit and a radiation detector and by detecting the radiation via the radiation detector;a tomographic image generating unit that generates tomographic images of the object by reconstructing them from the acquired plural projection images;a projection image mask generating unit that generates plural projection image masks for separating an object region and a direct incidence region of each of the plural projection images, the object region being a region that includes an image of the object and the direct incidence region being a region that does not include an image of the object;a tomographic image mask generating unit that reconstructs and generates, from the plural projection image masks, tomographic image masks for ...

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Номер записи: 60
10-04-2014 дата публикации

QUANTITATIVE ASSESSMENT OF THE SKULL

Номер: US20140100485A1
Автор: LINGURARU Marius G., Mendoza Carlos S., Rogers Gary F., SAFDAR Nabile
Принадлежит:

A technique for performing computational analysis of craniosynostosis from CT images is discussed. An image-computing platform assesses craniofacial malformations by using a shape analysis methodology for image processing. The shape of a patient's craniofacial anatomy is assessed in terms of a statistical shape model that incorporates normal shape variability. The model allows for the identification of a closest normal variant to a patient's anatomy rather than comparing the patient's anatomy to an age-specific average shape. Further, an image registration and segmentation method is discussed which enables obtaining a personalized anatomical model for each patient, thereby achieving a precise and systematic characterization of shape abnormality. Visual (qualitative) and quantitative surgical planning, as well as pre-operative and post-operative assessments are achieved. Further, automatic surgical planning for cranial vault reconstruction using tessellation algorithms to establish the relationship between patient's anatomy and the closest normal variant is discussed. 1(a) receiving, into a processor, radiological input data displaying craniofacial anatomy of a plurality of subjects, the plurality of subjects including both normal and abnormal subjects; (i) delineating bone tissue;', '(ii) registering the bone tissue to a reference space; and', '(iii) identifying craniofacial bones;, '(b) for each of the subjects(c) computing a shape model from the identified craniofacial bones of the normal subjects; (i) using the shape model to identify a normal shape closest to that of the subject; and', '(ii) computing local shape difference between the subject and the closest normal shape;, '(d) for each of the subjects(e) for each of the abnormal subjects, classifying shape analysis results according to different pathology types to forma a chart of a degree of local shape abnormality for each pathology; and(f) using the chart to diagnose a pathology.. An image computing ...

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Номер записи: 61
06-01-2022 дата публикации

IMAGE ORIENTATION SETTING APPARATUS, IMAGE ORIENTATION SETTING METHOD, AND IMAGE ORIENTATION SETTING PROGRAM

Номер: US20220000442A1
Автор: SAKURAGI Futoshi
Принадлежит: FUJIFILM Corporation

A core-line extraction unit extracts a core line of the blood vessel from a three-dimensional image of a subject including the blood vessel. A local-route extraction unit extracts a local route of the core line within a predetermined range based on a reference point on the core line. In a case where a plurality of points on the local route are projected, a plane setting unit sets a plane having an orientation in which a distribution of a plurality of the projected points has a reference value based on a maximum value of the distribution, as a display plane of the three-dimensional image. 1. An image orientation setting apparatus comprising: extract a core line of a blood vessel from a three-dimensional image of a subject including the blood vessel,', 'extract a local route of the core line within a predetermined range based on a reference point on the core line, and', 'set, in a case where a plurality of points on the local route are projected, a plane having an orientation in which a distribution of a plurality of the projected points has a reference value based on a maximum value of the distribution, as a display plane of the three-dimensional image., 'a processor that is configured to'}2. The image orientation setting apparatus according to claim 1 ,wherein the processor is configured to display a projected image in which the three-dimensional image is projected onto the display plane, on a display.3. The image orientation setting apparatus according to claim 1 , extract the local route within the predetermined range based on the moved reference point, and', 'set a second display plane on the basis of the local route extracted within the predetermined range based on the moved reference point., 'wherein in a case where the reference point is moved, the processor is configured to'}4. The image orientation setting apparatus according to claim 3 ,wherein the processor is configured to display a first projected image and a second projected image on a display, the ...

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Номер записи: 62
07-01-2016 дата публикации

APPARATUS AND METHOD FOR X-RAY-BASED BREAST IMAGING

Номер: US20160000393A1
Автор: KARELLAS Andrew, VEDANTHAM Srinivasan
Принадлежит:

The invention provides x-ray-based breast imaging systems and related methods that are, for example, applicable to contrast enhanced digital mammography and contrast enhanced digital breast tomosynthesis and allow fast, cost-effective and accurate x-ray imaging. 2. The system of claim 1 , wherein the x-ray source and the x-ray detector remain stationary when taking the one or more images of the right breast and remain stationary when taking the one or more images of the left breast.3. The system of claim 2 , useful for radiographic or mammographic imaging without x-ray contrast agent administered to the subject prior to imaging.4. The system of claim 2 , useful for radiographic or mammographic imaging with x-ray contrast agent administered to the subject prior to imaging.5. The system of claim 1 , wherein the x-ray detector remains stationary and the x-ray source travels along a pre-defined trajectory when taking the one or more images of the right breast and the x-ray detector remains stationary and the x-ray source travels along a pre-defined trajectory when taking the one or more images of the left breast.6. The system of claim 5 , useful for tomographic imaging with x-ray contrast agent administered to the patient prior to imaging.7. The system of claim 5 , useful for tomographic imaging without x-ray contrast agent administered to the patient prior to imaging.8. The system of claim 1 , configured to allow imaging of the subject to take place while the subject is in a prone posture.9. The system of claim 1 , configured to allow imaging of the subject to take place while the subject is in an upright posture.10. The system of claim 1 , wherein the assembly of the x-ray source and the x-ray detector is rotatable in synchrony around an axis located substantially mid-way between the right and left breasts and normal to the subject's chest.12. The system of claim 11 , configured to allow imaging of the subject while the subject is in a prone posture.13. The system of ...

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Номер записи: 63
07-01-2016 дата публикации

Assessing Optical Density Gradients and Variations

Номер: US20160000395A1
Автор: Arakkal Joan, Perumpanani Abbey John
Принадлежит: MARIKA PTY LTD

The invention relates to a method of assessing an optical density gradient in one or more radiologic images of a non-uniformly composed material for purpose of using the optical density gradient to assess a characteristic of the non-uniformly composed material. Optical density gradient is calculated as a function of the difference in optical density between a first and second region on the one or more images. The method finds particular application in predicting occurrence or likelihood of non-union of a bone fracture and for predicting occurrence of likelihood of a disorder or disease of the bone, such as osteoporosis. 1. A method of assessing an optical density gradient in one or more radiologic images of a non-uniformly composed material , the method comprising:a) determining optical density of at least a first region and a second region of the one or more radiologic image;b) determining distance between the first and second regions,c) calculating the optical density gradient as a function of the difference in optical densities of the first and the second regions and the distance therebetween; andd) using the optical density gradient to assess a characteristic of the non-uniformly composed material.2. The method of claim 1 , wherein the radiologic image is an image taken using imaging technology capable of exhibiting variations in density.3. The method of claim 2 , wherein the imaging technology is capable of exhibiting variations in optical density.4. The method of claim 1 , wherein the radiologic image is one of an x-ray claim 1 , computed tomography claim 1 , magnetic resonance claim 1 , ultrasound or positron emission tomography image.5. The method of claim 1 , wherein optical density is determined for a plurality of regions on the image corresponding to the non-uniformly composed material.6. The method of claim 1 , wherein each region for which optical density is to be determined is marked out on the image and size and shape of each region are determined ...

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Номер записи: 64
07-01-2016 дата публикации

Method for assessing stenosis severity through stenosis mapping

Номер: US20160000397A1
Автор: James Jacobs, Zhongle Wu
Принадлежит: INTRINSIC MEDICAL IMAGING LLC

A method of assessing stenosis severity for a patient includes obtaining patient information relevant to assessing severity of a stenosis, including anatomical imaging data of the patient. Based on the anatomical imaging data, the existence of any lesions of concerns may be identified. A three dimensional image can be generated of any irregular shaped lesion of concern and a surrounding area from the patient anatomical imaging data. A plurality of comparative two dimensional lesion specific models may be created that have conditions that correspond to the three dimensional model. The comparative two dimensional models may represent vessels having regular shaped lesions with each of the comparative two dimensional models represents a different stenosis severity. The three dimensional model can then be mapped to one of the plurality of comparative two dimensional models. After this mapping, a diagnosis of whether the patient has coronary artery disease may be made.

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Номер записи: 65
07-01-2021 дата публикации

METHODS FOR X-RAY IMAGING OF A SUBJECT USING MULTIPLE-ENERGY DECOMPOSITION

Номер: US20210000436A1
Автор: Chao YongSheng, ZHAO Ying
Принадлежит:

Methods for quantitatively separating x-ray images of a subject having three or more component materials into component images using spectral imaging or multiple-energy imaging with 2D radiographic hardware implemented with scatter removal methods. The multiple-energy system may be extended by implementing DRC multiple energy decomposition and K-edge subtraction imaging methods. 154.-. (canceled)55. A system which images a subject , the system comprising:an x-ray source configured to illuminate a subject, with x-rays having at least two different energy levelsan x-ray measuring device having at least one two dimensional detector and configured such that a subject can be located between the x-ray source and the x-ray measuring device, the x-ray measuring device further configured to detect the x-rays after the x-rays have passed through the subject;wherein the x-ray measurement device is configured to reduce an effect of x-ray scatter from the detected x-rays to produce at least one image.56. The system of claim 55 , wherein the x-ray measuring device is further configured to identify at least one substance in the at least one image.57. The system of claim 56 , wherein the x-ray measuring device is further configured to identify plurality of different substances in the image.58. The system of claim 56 , wherein the x-ray measuring device is further configured to identify a substance in the at least one image indicative of an abnormal condition claim 56 , a disease state claim 56 , and/or at least one variation in its state.59. (canceled)60. The system of claim 56 , wherein the substance is a microcalcification claim 56 , cancer claim 56 , a tumor claim 56 , a contrast agent indicative of a tumor claim 56 , nanoparticles claim 56 , an iodinated blood vessel and/or a contrast agent indicative of tissue.61. (canceled)62. The system of claim 56 , wherein the x-ray measuring device is further configured identify the substance using a database of known materials claim 56 , ...

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Номер записи: 66
03-01-2019 дата публикации

X-RAY CT APPARATUS

Номер: US20190000409A1
Автор: MIYAZAKI Hiroaki, Nakai Hiroaki, Ono Toshiyuki, TAMURA Emi
Принадлежит: Canon Medical Systems Corporation

An X-ray CT apparatus according to one embodiment includes a photon counting detector and a processing circuitry. The photon counting detector includes a plurality of detecting elements configured to detect X-rays. The processing circuitry is configured to set a control parameter corresponding to a position of each of the detecting elements in the photon counting detector. 1. An X-ray CT apparatus comprising:a photon counting detector including a plurality of detecting elements each of which is configured to detect X-rays; andprocessing circuitry configured to set a control parameter corresponding to a position of each of the detecting elements in the photon counting detector.2. The X-ray CT apparatus according to claim 1 , wherein the detecting element configured to detect X-ray photons; and', 'counting circuitry connected to the detecting element and configured to count the X-ray photons detected by the detecting element, and, 'the photon counting detector includes a plurality of detection circuitries, each of which includesthe processing circuitry sets, as the control parameter, a processing time corresponding to the position of each of the detecting elements in the photon counting detector, in the counting circuitry connected to each of the detecting elements at a time of imaging.3. The X-ray CT apparatus according to claim 2 , wherein the processing circuitry sets claim 2 , in each of the counting circuitries claim 2 , a processing time that is based on an X-ray dose incident on each of the detecting elements.4. The X-ray CT apparatus according to claim 3 , wherein the processing circuitry sets claim 3 , in each of the counting circuitries claim 3 , a processing time that is based on an X-ray dose incident on each of the detecting elements claim 3 , the X-ray dose being estimated from a count result obtained by each of the detecting elements.5. The X-ray CT apparatus according to claim 3 , wherein the processing circuitry sets claim 3 , in each of the counting ...

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Номер записи: 67
04-01-2018 дата публикации

Image processing apparatus, image processing method, and program

Номер: US20180000440A1
Автор: Kazuhiro Nishikawa
Принадлежит: Nihon Medi Physics Co Ltd

An image processing device includes: an image data acquisition unit for acquiring SPECT image data of a brain; a brain-region ROI definition unit for defining a brain-region ROI in the SPECT image; a striatum ROI definition unit for defining a striatum ROI in the SPECT image; and a threshold determination unit for, based on counts in the SPECT image's background which is the brain-region ROI except the striatum ROI, determining a threshold for distinguishing ventricles and sulci in the SPECT image; a region distinction unit for distinguishing between a region whose number of counts is smaller than or equal to the threshold and a region whose number of counts is larger than the threshold.

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Номер записи: 68
05-01-2017 дата публикации

BREAST IMAGING APPARATUS

Номер: US20170000435A1
Автор: HIRANO Yoshinori, Inagaki Chifuyu, KOMATSU Hiroshi, Noguchi Takahiro, Ogasawara Hitomi, Shimada Tetsuo, Takeuchi Nobuhiro, Tsujii Osamu, Yamaguchi Sakiko
Принадлежит:

A breast imaging apparatus includes a gantry which includes a radiation generation unit configured to generate a radiation and a radiation detection unit configured to detect the radiation generated from the radiation generation unit, and a support leg portion configured to support the gantry on a floor. The radiation generation unit and the radiation detection unit are capable of rotating in a state where the radiation generation unit and the radiation detection unit face each other. The support leg portion has a recess portion to insert feet of a subject. 1. A breast imaging apparatus comprising:a gantry including a radiation generation unit configured to generate a radiation and a radiation detection unit configured to detect the radiation emitted from the radiation generation unit; anda support leg portion configured to support the gantry with respect to a floor,wherein the radiation generation unit and the radiation detection unit are capable of rotating in a state where the radiation generation unit and the radiation detection unit face each other, andwherein the support leg portion has a recess portion configured to allow a part of a foot (feet) of a subject to enter therein.2. The breast imaging apparatus according to claim 1 , wherein the support leg portion is formed with a long cylinder portion extending in a vertical direction and a base unit which is connected to the long cylinder portion and in contact with the floor.3. The breast imaging apparatus according to claim 2 , wherein the base unit is formed in such a manner that the base unit protrudes outward from a circumference of a bottom face of the long cylinder portion.4. The breast imaging apparatus according to claim 2 , wherein the recess portion is formed such that a part of the base unit on a predetermined side is cut off.5. The breast imaging apparatus according to claim 2 , wherein the recess portion is formed such that a part of the long cylinder portion on the predetermined side is cut off ...

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Номер записи: 69
05-01-2017 дата публикации

RADIATION IMAGING APPARATUS AND CONTROL METHOD AND PROGRAM OF THE APPARATUS

Номер: US20170000439A1
Автор: Takasaki Takashi
Принадлежит:

An energy control unit continuously adjusts energy of radiations in one shot emitted by an X-ray irradiation unit. An X-ray detection unit generates a plurality of image data pieces in one shot by detecting the radiations whose energy is continuously adjusted and transmitted through a subject. An image classification unit classifies the plurality of image data pieces generated by the X-ray detection unit into image data generated by the radiations of a high energy side and image data generated by the radiations of a low energy side. An image subtraction unit performs weighting and subtraction on the image data generated by the radiations of the high energy side and the image data generated by the radiations of the low energy side. 1. An apparatus for radiation imaging comprising:an irradiation unit configured to irradiate an object with radiations that tube voltage of the irradiation unit is continuously changed in one shot;a radiation detector configured to detect radiations, which are irradiated by the irradiation unit, in one shot through the object;an obtaining unit configured to obtain image data from the radiation detector; anda classification unit configured to classify image data into a first group and a second group, wherein image data corresponding to a low energy side is classified into the first group, and image data corresponding to a high energy side is classified into the second group based on an elapsed time corresponding to radiations irradiated by the irradiation unit.2. The radiation imaging apparatus according to claim 1 , further comprising:a subtraction unit configured to perform subtraction on the image data obtained by the radiations of the high energy side and the image data obtained by the radiations of the low energy side.3. The radiation imaging apparatus according to claim 1 , further comprising:a control unit configured to continuously adjust energy of the radiations in one shot irradiated by the irradiation unit.4. The radiation ...

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Номер записи: 70
05-01-2017 дата публикации

SYSTEMS AND METHODS FOR FLOW RATE COMPENSATED ACQUISITION PARAMETERS FOR MEDICAL IMAGING

Номер: US20170000440A1
Автор: Graney Judy Marie, Hammond Christine Carol, Jackson John Irvin, Lewis Chelsey Amanda, Okerlund Darin Robert, Profio Mark Vincent
Принадлежит:

Systems and methods are provided that acquire image data of a first location of a region of interest (ROI) when located in a field of view of a medical imaging system as a contrast material injected into the ROI passes through the first location. The systems and methods further determine from the image data of the first location when a first contrast metric is reached, and after determining the image data of the first location, position the second location of the ROI in the field of view of the medical imaging system. The systems and methods further acquire image data of the second location as the contrast material passes through the second location, and determine from the image data of the second location when the contrast material reaches a second contrast metric. 1. A method comprising:acquiring image data of a first location of a region of interest (ROI) when located in a field of view of a medical imaging system as a contrast material injected into the ROI passes through the first location, wherein the contrast material successively traverses from the first location to a second location of the ROI, the second location being spaced apart from the first location;determining from the image data of the first location when a first contrast metric is reached;after determining the image data of the first location, positioning the second location of the ROI in the field of view of the medical imaging system;acquiring image data of the second location as the contrast material passes through the second location; anddetermining from the image data of the second location when the contrast material reaches a second contrast metric.2. The method of claim 1 , further comprising calculating a flow rate of the contrast material from the first location to the second location based on when the first contrast metric and the second contrast metric are reached.3. The method of claim 2 , further comprising:determining select scan settings from a plurality of scan settings based on ...

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Номер записи: 71
05-01-2017 дата публикации

Device and method for spatiotemporal reconstruction of a moving vascular pulse wave in the brain and other organs

Номер: US20170000441A1
Автор: William E. Butler
Принадлежит: Individual

The brain appears to have organized cardiac frequency angiographic phenomena with such coherence as to qualify as vascular pulse waves. Separate arterial and venous vascular pulse waves may be resolved. This disclosure states the method of extracting a spatiotemporal reconstruction of the cardiac frequency phenomena present in an angiogram obtained at faster than cardiac frequency. A wavelet transform is applied to each of the pixel-wise time signals of the angiogram. If there is motion alias then instead a high frequency resolution wavelet transform of the overall angiographic time intensity curve is cross-correlated to high temporal resolution wavelet transforms of the pixel-wise time signals. The result is filtered for cardiac wavelet scale then pixel-wise inverse wavelet transformed. This gives a complex-valued spatiotemporal grid of cardiac frequency angiographic phenomena. It may be rendered with a brightness-hue color model or subjected to further analysis.

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Номер записи: 72
03-01-2019 дата публикации

METHOD AND SYSTEM FOR IMAGE PROCESSING TO DETERMINE BLOOD FLOW

Номер: US20190000554A1
Автор: Taylor Charles A.
Принадлежит:

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- ...

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Номер записи: 73
01-01-2015 дата публикации

TUMOR SEGMENTATION AND TISSUE CLASSIFICATION IN 3D MULTI-CONTRAST

Номер: US20150003703A1
Автор: FRANZ ASTRID RUTH, Keupp Jochen, Remmele Stefanie, Stehning Christian
Принадлежит:

A medical imaging system () includes a workstation (), a coarse segmenter (), a fine segmenter (), and an enclosed tissue identification module (). The workstation () includes at least one input device () for receiving a selected location as a seed in a first contrasted tissue type and a display device () which displays a diagnostic image delineating a first segmented region of a first tissue type and a second segmented region of a second contrasted tissue type and identified regions which include regions fully enclosed by the first segmented region as a third tissue type. The coarse segmenter () grows a coarse segmented region of coarse voxels for each contrasted tissue type from the seed location based on a first growing algorithm and a growing fraction for each contrasted tissue type. The seed location for growing the second contrasted tissue type includes the first coarse segmented region and any fully enclosed coarse voxels, and each coarse voxel includes an aggregation of voxels and a maximum and a minimum of the voxel intensities. The fine segmenter () grows a segmented region of voxels for each contrasted tissue type from the seed location and bounded by the second coarse segmented region based on a second growing algorithm and a growing fraction for each contrasted tissue type initially set to the growing fraction for the corresponding region. The seed location for growing the second contrasted tissue type includes the first segmented region and any identified regions. The enclosed tissue identification module () identifies any regions of voxels fully enclosed by the first segmented region as being of the third tissue type. The coarse segmenter, the fine segmenter, and the enclosed tissue identification module are implemented by an electronic data processing device. 1. A medical imaging system , comprising:a workstation including at least one input device for receiving a selected location in an imaging data set having different contrast for a first and a ...

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Номер записи: 74
13-01-2022 дата публикации

SYSTEMS AND METHODS FOR GENERATING CUSTOMIZED CONTROL BOUNDARIES

Номер: US20220008132A1
Автор: Kang Hyosig, Otto Jason
Принадлежит: MAKO Surgical Corp.

A method includes providing a standard control boundary defining a portion of a bone to be resected, registering a position of a soft tissue at the bone, obtaining a customized control boundary by moving a vertex of the standard control boundary based on the position of the soft tissue, and controlling a robotic device to constrain operation of a cutting tool to an area defined by the customized control boundary. 1. A method , comprising:providing a standard control boundary defining a portion of a bone to be resected;registering a position of a soft tissue at the bone;obtaining a customized control boundary by moving a vertex of the standard control boundary based on the position of the soft tissue; andcontrolling a robotic device to constrain operation of a cutting tool to an area defined by the customized control boundary.2. The method of claim 1 , further comprising providing a virtual representation of the bone.3. The method of claim 2 , further comprising displaying the standard control boundary relative to the virtual representation of the bone and allowing a user to adjust the vertex of the standard control boundary using an input device.4. The method of claim 2 , wherein providing the virtual representation of the bone comprises generating the virtual representation of the bone based on imaging of the bone.5. The method of claim 2 , wherein providing the virtual representation of the bone comprises accessing a library of bone models.6. The method of claim 1 , further comprising:selecting an implant component to be implanted on the bone; andproviding the standard control boundary based on the implant component.7. The method of claim 1 , wherein registering the position of the soft tissue at the bone comprises tracking a probe.8. The method of claim 1 , wherein the cutting tool is coupled to the robotic device.9. The method of claim 1 , wherein the bone to be resected is part of a shoulder of a patient.10. A computer-assisted surgery system comprising:one or ...

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Номер записи: 75
04-01-2018 дата публикации

LOW-COST DIGITAL PET DESIGN

Номер: US20180003828A1
Автор: Dwivedi Shekhar, HAJARI Venudhar Rao
Принадлежит:

A diagnostic imaging system utilizing a reduced crystal design pattern is utilized to image a subject and collect event data. The reduced crystal design pattern includes filled crystal locations and empty crystal locations. A processor accounts for empty crystal locations by selecting windows that include nearest neighbor filled crystal locations. The nearest neighbor filled crystal locations include event data which is averaged by the processor and assigned to the empty crystal location. A weighted average based on distance or event strength is incorporated. 1. A nuclear imaging system comprising:a radiation detector having a regular array of detector pixel locations and including:radiation detector elements occupying some of the detector pixel locations of the regular array andunoccupied detector pixel locations of the regular array that are not occupied by radiation detector elements.2. The nuclear imaging system according to claim 1 , further comprising:one or more processors configured to process radiation event data acquired of a subject using the radiation detector to generate a reconstructed image of the subject by operations including:estimating radiation event data for the unoccupied detector pixel locations based on radiation event data acquired of the subject by radiation detector elements occupying detector pixel locations of the regular array that neighbor the unoccupied detector pixel locations; andreconstructing a data set including both the radiation event data acquired of the subject using the radiation detector and the estimated radiation event data for the unoccupied detector pixel locations to generate the reconstructed image of the subject.3. The nuclear imaging system according to wherein the estimating comprises:estimating radiation event data for an unoccupied detector pixel location based on radiation event data acquired of the subject by radiation detector elements occupying detector pixel locations within a window defined around the ...

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Номер записи: 76
05-01-2017 дата публикации

Diagnosing Pulmonary Embolism by Integrating Patient-Level Diagnosis and Embolus-Level Detection

Номер: US20170004268A1
Автор: Jianming Liang
Принадлежит: Arizona Board of Regents of ASU

Improved pulmonary embolism (PE) detection may be obtained through computer aided-diagnosis. In particular, PE detection may be accomplished through patient-level diagnosis, embolus-level detection, or a combination of the two. Patient-level diagnosis operates to quickly exclude non-PE patients and dispatch PE-patients to treatment. Embolus-level detection operates to localize individual emboli to support personalized medicine via risk stratification. Multiple instance-based learning (MIBL) classification at the patient level explores the key observation that once any TP candidate of a patient is classified as positive, the patient is identified as PE positive. That is, MIBL focuses on correct classification of patients rather than individual candidates, to effectively and rapidly distinguish between PE patients and non-PE patients.

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Номер записи: 77
05-01-2017 дата публикации

System and method for automatic pulmonary embolism detection

Номер: US20170004619A1
Автор: Jianming Liang, Nima Tajbakhsh
Принадлежит: Jianming Liang, Nima Tajbakhsh

A system and method for detecting pulmonary embolisms in a subject's vasculature are provided. In some aspects, the method includes acquiring a set of images representing a vasculature of the subject, and analyzing the set of images to identify pulmonary embolism candidates associated with the vasculature. The method also includes generating, for identified pulmonary embolism candidates, image patches based on a vessel-aligned image representation, and applying a set of convolutional neural networks to the generated image patches to identify pulmonary embolisms. The method further includes generating a report indicating identified pulmonary embolisms.

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Номер записи: 78
13-01-2022 дата публикации

METHOD OF DETERMINING CONTRAST PHASE OF A COMPUTERIZED TOMOGRAPHY IMAGE

Номер: US20220012927A1
Автор: Dufort Paul, Graf Benedikt, Katouzian Amin, Sitek Arkadiusz, Takeuchi Yusuke, Xie Yiting
Принадлежит:

A computer-implemented method for classifying and presenting a contrast phase (CP) of a contrast enhanced computerized tomography (CECT) scan is provided. The method includes training an artificial intelligence (AI) algorithm utilizing a set of CPs labeled CECT data to associate a set of characteristics of the data with a probability associated with the CP. The method includes receiving a new set of unlabeled CECT data, and applying the AI algorithm to the new unlabeled CECT data to associate a first probability of a first CP and a second probability of a second CP. The method also includes providing a graphical representation including the first probability of the first CP and the second probability of the second CP. 1. A computer-implemented method for classifying and presenting a contrast phase (CP) of a contrast enhanced computerized tomography (CECT) scan comprising:training an artificial intelligence (AI) algorithm utilizing a set of CPs labeled CECT data to associate a set of characteristics of the data with a probability associated with the CP;receiving a new set of unlabeled CECT data;applying the AI algorithm to the new unlabeled CECT data to associate a first probability of a first CP and a second probability of a second CP; andproviding a graphical representation including the first probability of the first CP and the second probability of the second CP.2. The computer-implemented method according to claim 1 , wherein the CP is selected from the group consisting of pre-contrast claim 1 , early arterial claim 1 , arterial claim 1 , portal-venous claim 1 , nephrogenic claim 1 , and late.3. The computer-implemented method according to claim 1 , wherein the graphical representation is in a form of a polygon.4. The computer-implemented method according to claim 3 , wherein a number of sides of the polygon corresponds to a number of the CPs claim 3 , and each vertex of the polygon corresponds to a different one of the CPs.5. The computer-implemented method ...

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Номер записи: 79
04-01-2018 дата публикации

Intelligent multi-scale medical image landmark detection

Номер: US20180005083A1
Автор: Bogdan Georgescu, Dominik NEUMANN, Dorin Comaniciu, Florin Cristian Ghesu, Shaohua Kevin Zhou, Tommaso Mansi, WEN Liu, Yefeng Zheng
Принадлежит: Friedrich Alexander Univeritaet Erlangen Nuernberg FAU, Siemens Healthcare GmbH, Siemens Medical Solutions USA Inc

Intelligent multi-scale image parsing determines the optimal size of each observation by an artificial agent at a given point in time while searching for the anatomical landmark. The artificial agent begins searching image data with a coarse field-of-view and iteratively decreases the field-of-view to locate the anatomical landmark. After searching at a coarse field-of view, the artificial agent increases resolution to a finer field-of-view to analyze context and appearance factors to converge on the anatomical landmark. The artificial agent determines applicable context and appearance factors at each effective scale.

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Номер записи: 80
07-01-2021 дата публикации

METHOD FOR PROVIDING AN EVALUATION DATASET FROM A FIRST MEDICAL THREE-DIMENSIONAL COMPUTED TOMOGRAPHY DATASET

Номер: US20210004997A1
Автор: Kaethner Christian, Kowarschik Markus, Manhart Michael
Принадлежит:

A system and method for providing an evaluation dataset from a first medical three-dimensional computed tomography dataset. The method includes reconstructing the first three-dimensional computed tomography dataset from a plurality of two-dimensional X-ray projection images recorded with different acquisition geometries from an examination object by a medical X-ray device and providing an artifact-reduced image dataset. Providing includes applying a method for reducing artifacts to the first computed tomography dataset. The method further includes identifying for example hemorrhagic and/or ischemic stroke indications by applying an method for identifying stroke indications to the artifact-reduced image dataset, creating an evaluation dataset by applying an method for evaluating a manifestation of the identified stroke indications to the artifact-reduced image dataset, and providing the evaluation dataset. 1. A method for providing an evaluation dataset from a first medical three-dimensional computed tomography dataset , the method comprising:reconstructing the first three-dimensional computed tomography dataset from a plurality of two-dimensional X-ray projection images recorded with different acquisition geometries from an examination object by a medical X-ray device;applying a method for reducing artifacts to the first three-dimensional computed tomography dataset to generate an artifact-reduced image dataset;identifying one or more stroke indications from the artifact-reduced image dataset;creating an evaluation dataset by applying a method for evaluating a manifestation of the identified stroke indications to the artifact-reduced image dataset; andproviding the evaluation dataset.2. The method as claimed in claim 1 , further comprising:creating a three-dimensional thrombus image from the artifact-reduced image dataset, the evaluation dataset, or the artifact-reduced image dataset or the evaluation dataset; andproviding the three-dimensional thrombus image; ...

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Номер записи: 81
04-01-2018 дата публикации

Systems and methods for medical image registration

Номер: US20180005388A1
Автор: Nathaniel Roth, Yoel Zilberstien
Принадлежит: Spectrum Dynamics Medical Ltd

There is provided a method for registration of intravital anatomical imaging modality image data and nuclear medicine image data of a patient's heart comprising: obtaining anatomical image data including a heart of a patient outputted by an anatomical intravital imaging modality; obtaining at least one nuclear medicine image data outputted by a nuclear medicine imaging modality, the nuclear medicine image data including the heart of the patient; identifying a segmentation of a network of vessels of the heart in the anatomical image data; identifying a contour of at least part of the heart in the nuclear medicine image data, the contour including at least one muscle wall border of the heart; correlating between the segmentation and the contour; registering the correlated segmentation and the correlated contour to form a registered image of the anatomical image data and the nuclear medicine image data; and providing the registered image for display.

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Номер записи: 82
02-01-2020 дата публикации

DYNAMIC IMAGE PROCESSING APPARATUS AND RECORDING MEDIUM

Номер: US20200005458A1
Автор: Matsutani Noritsugu
Принадлежит: KONICA MINOLTA, INC.

A dynamic image processing apparatus includes a hardware processor that detects an abnormal site of an imaging object from a radiographically taken dynamic image, and identifies a three-dimensional position of the abnormal site from a positional relationship between the abnormal site of the imaging object detected from one dynamic image and the abnormal site of the imaging object detected from another dynamic image when the abnormal site is detected from a plurality of dynamic images radiographically taken in a plurality of directions. 1. A dynamic image processing apparatus , comprising a hardware processor that detects an abnormal site of an imaging object from a radiographically taken dynamic image , and identifies a three-dimensional position of the abnormal site from a positional relationship between the abnormal site of the imaging object detected from one dynamic image and the abnormal site of the imaging object detected from another dynamic image when the abnormal site is detected from a plurality of dynamic images radiographically taken in a plurality of directions.2. The dynamic image processing apparatus according to claim 1 , wherein the hardware processor detects the abnormal site claim 1 , based on a dynamic analysis result of the dynamic image.3. The dynamic image processing apparatus according to claim 2 , wherein the hardware processor displays the detected abnormal site on a display.4. The dynamic image processing apparatus according to claim 3 , wherein when the three-dimensional position of the abnormal site is identified claim 3 , the hardware processor displays the abnormal site on a three-dimensional image that three-dimensionally represents an analysis result image indicating a dynamic analysis result of the one dynamic image and an analysis result image indicating a dynamic analysis result of the other dynamic image.5. The dynamic image processing apparatus according to claim 1 , wherein the hardware processor detects the abnormal site claim ...

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Номер записи: 83
03-01-2019 дата публикации

Method for performing an imaging examination

Номер: US20190005647A1
Автор: Christian Hofmann
Принадлежит: Siemens Healthcare GmbH

A method is disclosed for performing an imaging examination of a patient via a computer tomograph. The method includes: capturing a respiratory movement of the patient; determining a respiration-correlated parameter, from the respiratory movement of the patient; specifying a measurement region of the imaging examination the measurement region including at least one z-position; automatically calculating at least one measurement parameter in accordance with the respiratory movement, using the respiration-correlated parameter as an input parameter; and performing the imaging examination of the patient, in accordance with the at least one measurement parameter in the measurement region via the computer tomograph, to capture the projection data, wherein the projection data, when captured, depicts the respiratory cycle of the patient at the at least one z-position over the complete time duration of the respiratory cycle.

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Номер записи: 84
03-01-2019 дата публикации

SYSTEMS AND METHODS FOR VOLUMETRIC SEGMENTATION OF STRUCTURES IN PLANAR MEDICAL IMAGES

Номер: US20190005649A1
Автор: Avery Aaron, Chylla Roger, Gering David
Принадлежит:

Methods and systems for volumetric segmentation of structures in planar medical images. One example method includes displaying a first planar medical image. The method further includes receiving a user input indicating a line segment in the first planar medical image. The method also includes determining an inclusion region using the line segment. The inclusion region consists of a portion of the structure. The method further includes determining a containment region using the line segment. The containment region includes the structure. The method also includes determining a background region using the line segment. The background region excludes the structure. The method further includes determining a three dimensional (3D) contour of the structure using the inclusion region, the containment region, and the background region. The method also includes determining a long axis of the structure using the 3D contour. The method further includes outputting a dimension of the long axis. 1. A method for volumetric segmentation of a structure in a plurality of planar medical images , the method comprising:receiving, at an electronic processor, the plurality of planar medical images, wherein the plurality of planar medical images form a three dimensional (3D) volume including the structure;displaying, on a display, a first planar medical image from the plurality of planar medical images;receiving, with a user interface, a user input indicating a line segment in the first planar medical image;determining, with the electronic processor, an inclusion region of the 3D volume using the line segment, wherein the inclusion region consists of a portion of the structure;determining, with the electronic processor, a containment region of the 3D volume using the line segment, wherein the containment region includes the structure;determining, with the electronic processor, a background region of the 3D volume using the line segment, wherein the background region excludes the structure; ...

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Номер записи: 85
20-01-2022 дата публикации

Visualization and recordation system interface with virtual ground for biomedical system and methods

Номер: US20220015658A1
Автор: Andres Claudio Altmann, Israel Zilberman, Vadim Gliner
Принадлежит: Biosense Webster Israel Ltd

Methods, apparatus, and systems for medical procedures are disclosed herein. For example, a plurality of analog sensor signals and an analog reference signal are received by an analog-to-digital converter to produce respective digitized versions of the analog sensor signals. The respective digitized versions of the analog sensor signals are digital filtered to produce respective filtered digitized versions of the analog sensor signals. The filtered digitized versions of the analog sensor signals are output to a visualization system to provide real time display thereof. The filtered digitized versions of the analog sensor signals are communicated to a digital-to-analog converter to produce an analog version of the filtered digitized versions of the analog sensor signals. The analog version of the filtered digitized versions of the analog sensor signals along with the analog reference signal are output to a recordation system to provide supplemental processing and storage thereof.

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Номер записи: 86
02-01-2020 дата публикации

INFORMATION PROCESSING APPARATUS, CONTROL METHOD THEREFOR, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

Номер: US20200005942A1
Автор: KAWAGISHI MASAMI, Yamamoto Hiroyuki
Принадлежит:

An information processing apparatus comprising: first inference unit configured to perform a first inference to medical image data and obtain information related to a diagnostic name identified from the medical image data as a first inference result; and second inference unit configured to perform a second inference to the medical image data and the information related to the diagnostic name and obtain information related to an image finding as a second inference result. 1. An information processing apparatus comprising:first inference unit configured to perform a first inference to medical image data and obtain information related to a diagnostic name identified from the medical image data as a first inference result; andsecond inference unit configured to perform a second inference to the medical image data and the information related to the diagnostic name and obtain information related to an image finding as a second inference result.2. An information processing apparatus comprising:first inference unit configured to perform a first inference to medical image data and obtain information related to a likelihood of a malignancy of a disease identified from the medical image data as a first inference result; andsecond inference unit configured to perform a second inference to the medical image data and the information related to the likelihood of the malignancy of the disease and obtain information related to an image finding as a second inference result.3. The information processing apparatus according to claim 1 , wherein claim 1 , in that the second inference unit configured to perform the second inference by a parameter and/or an inference technique in accordance with the first inference result and obtain the information related to the image finding.4. The information processing apparatus according to claim 2 , wherein claim 2 , in that the second inference unit configured to perform the second inference by a parameter and/or an inference technique in ...

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Номер записи: 87
20-01-2022 дата публикации

DETERMINATION OF METABOLIC RATE FROM STATIC PET SCAN

Номер: US20220015721A1
Автор: Shah Vijay, Zuehlsdorff Sven
Принадлежит:

A system and method include identification of a blood pool region of the body based on the acquired positron emission tomography data, determination of activity in the blood pool region associated with a first time based on the acquired positron emission tomography data, determination of a scale factor based on the determined activity in the blood pool region and on an input function associated with one or more other human bodies, determination of activity in a tissue region associated with a second time based on the acquired positron emission tomography data, determination of a specific uptake ratio associated with the second time based on the activity in the tissue region, the scale factor and a value of the input function at the second time, determination of an estimate of metabolic rate in the tissue region based on the specific uptake ratio and the input function, and determination of a diagnosis associated with the tissue region based on the estimate of metabolic rate. 1. A system comprising: 'acquire positron emission tomography data associated with a human body;', 'an imaging device to identify a blood pool region of the body based on the acquired positron emission tomography data;', 'determine activity in the blood pool region associated with a first time based on the acquired positron emission tomography data;', 'determine a scale factor based on the determined activity in the blood pool region and on an input function associated with one or more other human bodies;', 'determine activity in a tissue region associated with a second time based on the acquired positron emission tomography data;', 'determine a specific uptake ratio associated with the second time based on the activity in the tissue region, the scale factor and a value of the input function at the second time;', 'determine an estimate of metabolic rate in the tissue region based on the specific uptake ratio and the input function; and', 'determine a diagnosis associated with the tissue region ...

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Номер записи: 88
12-01-2017 дата публикации

Low-dose ct perfusion technique

Номер: US20170007195A1
Автор: Sabee Molloi
Принадлежит: UNIVERSITY OF CALIFORNIA

Methods and apparatuses are disclosed for quantifying regional organ perfusion with low radiation dose using whole-organ CT in a patient comprising obtaining a computed tomography scan of the patient and determining perfusion of the organ using a first-pass analysis method in conjunction with conservation of mass for perfusion measurement.

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Номер записи: 89
14-01-2016 дата публикации

Method and system for reducing localized artifacts in imaging data

Номер: US20160007948A1
Автор: Alfonso Agatino Isola, Eberhard Sebastian Hansis, Jens Wiegert
Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV, Koninklijke Philips NV

A method and system for reducing localized artifacts in imaging data, such as motion artifacts and bone streak artifacts, are provided. The method includes segmenting the imaging data to identify one or more suspect regions in the imaging data near which localized artifacts are expected to occur, defining an artifact-containing region of interest in the imaging data around each suspect region, and applying a local bias field within the artifact-containing regions to correct for the localized artifacts.

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Номер записи: 90
14-01-2016 дата публикации

Surgery assistance apparatus and method, and non-transitory recording medium having stored therein surgery assistance program

Номер: US20160008085A1
Автор: Yoshinori Itai
Принадлежит: Fujifilm Corp

A surgery assistance apparatus includes an organ region extraction unit that extracts a tubular-organ region from a three-dimensional image obtained by imaging a tubular-organ and a blood vessel dominating the tubular-organ, a blood vessel region extraction unit that extracts a blood vessel region dominating the tubular-organ from the three-dimensional image, a branching structure extraction unit that extracts a branching structure of the blood vessel from the extracted blood vessel region, and a dominated region identification unit that identifies, with respect to an arbitrary partial blood vessel corresponding to an upper edge branching at least once to reach an edge including a terminal-end of the extracted branching structure, a dominated region in the tubular-organ region that is dominated by the arbitrary partial blood vessel by using positional relationships between a plurality of terminal end points present after the edge of the arbitrary partial blood vessel branches last and the tubular-organ region.

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Номер записи: 91
14-01-2016 дата публикации

METHOD OF INSTALLING A FINAL DENTAL PROSTHESIS

Номер: US20160008110A1
Автор: Harrison James
Принадлежит:

A cradle, assembly, system and method for installing a prosthesis at a surgical site. The cradle temporarily engages the prosthesis and holds it in the correct orientation and position adjacent the surgical site. An aperture is defined in the cradle and a portion of the prosthesis is received therein. In one embodiment, the cradle, assembly and system are used to install a final dental prosthesis in a patient's mouth in a single visit to the dentist's office. A securement member pins the surgical template and subsequently the cradle to the jaw. A reinforced sub-structure on the final dental prosthesis is received in the aperture in the cradle. Cylinders attached to implants anchored in the jaw extend through holes in the sub-structure and are bonded to the prosthesis. The cradle is detached from the jaw and from the prosthesis prior to screws being re-inserted through the cylinders and into the implants. 1. A method of installing a final dental prosthesis in a patient's mouth including:taking a CT scan of the patient's head to generate data about the patient's jaw;analyzing the generated data from the CT scan;designing, on a computer, a final dental prosthesis utilizing the analyzed data; andfabricating the designed final dental prosthesis, wherein the final dental prosthesis to include a reinforced sub-structure;fabricating a cradle to conform to a region of the patient's jaw;forming an aperture in the cradle that is complementary to the sub-structure;installing one or more implants in the region of the patient's jaw;engaging the sub-structure in the aperture of the cradle;placing the cradle on the region of the patient's jaw;positioning and orienting the sub-structure and thereby the final dental prosthesis relative to the one or more implants using the cradle;engaging the sub-structure with the one or more implants;removing the cradle and engaged sub-structure from the implants and the region of the patient's jaw;disengaging the sub-structure from the cradle; ...

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Номер записи: 92
14-01-2021 дата публикации

System and method for sleep disorders: screening, testing and management

Номер: US20210007659A1
Автор: Ree Cherng, Suzanne Shugg
Принадлежит: Teleplus Healthcare LLC

The present invention provides a system and/or platform that can efficiently monitor/manage patients with sleep disorders. In one embodiment, the system and platform can train and/or certify (or help in training/certifying) service providers/professionals. In one embodiment, the system and platform is integrated with a software or an information system to manage data related to patients. In one embodiment, the system and platform utilizes home sleep test which is more convenient and acceptable. In one embodiment, the system/platform provides the information and knowledge related to a subject's conditions.

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Номер записи: 93
14-01-2021 дата публикации

SYSTEMS AND METHODS FOR DETERMINING A BRAIN CONDITION OF A SUBJECT USING EARLY TIME FRAME PET IMAGE ANALYSIS

Номер: US20210007697A1
Автор: Andrews Randolph D., Lukic Ana S., Matthews Dawn C., Strother Stephen C., Wernick Miles N.
Принадлежит:

Systems and methods for use in identifying a brain condition of a subject are provided. In some aspects, a provided method includes constructing a classifier to identify a brain condition of a subject comprising steps of receiving image data obtained from a plurality of subjects, wherein the image data is acquired during an acquisition period following administration of at least one radioactive tracer. The method also includes defining a plurality of brain condition classes using the image data associated with one or more time frames during the acquisition period, and processing the image data to generate signatures corresponding to each of the plurality brain condition classes. The method further includes constructing the classifier using the signatures. The classifier can then be applied to determine a degree to which the subject expresses one or more disease states in order to determine a brain condition of the subject. 1receiving image data obtained from a plurality of subjects, wherein the image data is acquired during an acquisition period following administration of at least one radioactive tracer.. A method for constructing a classifier for identifying a brain condition of a subject, the method comprising: This application is a continuation of U.S. patent application Ser. No. 15/760,391, which represents the National Phase under 35 U.S.C. § 371 of PCT/US2016/051854, filed Sep. 15, 2016, which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/219,421 filed on Sep. 16, 2015, each of which references is incorporated herein by reference in its entiretyThe present disclosure relates generally to systems and methods for determining a medical condition of a patient using imaging data and, in particular, to systems and methods for identifying the presence and/or progression of a brain condition of a subject.Neurodegenerative diseases and other syndromes affecting the brain commonly exhibit distinctive symptoms and characteristics that often ...

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Номер записи: 94
14-01-2021 дата публикации

SPECTRAL INFLAMMATION MAP FROM SPECTRAL IMAGING DATA

Номер: US20210007698A1
Автор: FREIMAN MORDECHAY PINCHAS, Goshen Liran
Принадлежит:

A system () includes a memory () configured to store an inflammation map generator module (). The system further includes a processor () configured to: receive at least one of spectral projection data or spectral volumetric image data, decompose the at least one of spectral projection data or spectral volumetric image data using a two-basis decomposition to generate a set of vectors for each basis represented in the at least one of spectral projection data or spectral volumetric image data, compute a concentration of each basis within a voxel from the set of vectors for each basis, and determine a concentration of at least one of fat or inflammation within the voxel from the concentration of each basis. The system further includes a display configured to display the determined concentration of the at least one of fat or inflammation. 1. A system , comprising:a memory configured to store an inflammation map generator module; receive at least one of spectral projection data and spectral volumetric image data;', 'decompose the at least one of spectral projection data and spectral volumetric image data using a two-basis decomposition to generate a set of vectors for each basis represented in the at least one of spectral projection data and spectral volumetric image data;', 'compute a concentration of each basis within a voxel from the set of vectors for each basis; and', 'determine a concentration of at least one of fat and inflammation within the voxel from the concentration of each basis; and, 'a processor configured toa display configured to display the determined concentration of the at least one of fat and inflammation.2. The system of claim 1 , further comprising: a radiation source configured to emit X-ray radiation;', 'a detector array configured to detect X-ray radiation and generate the spectral projection data; and, 'an imaging system, includinga reconstructor configured to reconstruct a signal and generate the spectral volumetric image data.3. The system of ...

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Номер записи: 95
11-01-2018 дата публикации

Radiation imaging system

Номер: US20180008215A1
Автор: Hiroshi Wayama, Kazuya Furumoto, Keigo Yokoyama, Minoru Watanabe, Satoru Sawada
Принадлежит: Canon Inc

A radiation imaging system includes pixel array, scanning circuit to scan rows of the pixel array, and readout circuit to read signals from the pixel array. Each pixel includes converter to generate electric signal corresponding to radiation and transistor connected to the converter. The readout circuit reads signal from the converter via the transistor. The system performs image capturing modes and conditioning mode of conditioning a threshold voltage of the transistor. In the conditioning mode, the scanning circuit supplies, to a gate of the transistor, an OFF voltage different from OFF voltages in the image capturing modes. The scanning circuit scans the rows in units of at least one row in the image capturing modes, and scans the rows in units of at least two rows in the conditioning mode.

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Номер записи: 96
11-01-2018 дата публикации

ROBUST CALCIFICATION TRACKING IN FLUOROSCOPIC IMAGING

Номер: US20180008222A1
Автор: Chen Terrence, Hussein Sarfaraz, John Matthias, Singh Vivek Kumar
Принадлежит:

Robust calcification tracking is provided in fluoroscopic imagery. A patient with an inserted catheter is scanned over time. A processor detects the catheter in the patient from the scanned image data. The processor tracks the movement of the catheter. The processor also detects a structure represented in the data. The structure is detected as a function of movement with a catheter. The processor tracks the movement of the structure using sampling based on a previous location of the structure in the patient. The processor may output an image of the structure. 1. A method for structure detection , the method comprising:scanning, over time, an object having an inserted catheter;detecting by a processor, the catheter as represented in data from the scanning;tracking, by the processor, a movement of the catheter;detecting, by the processor, a structure represented in the data from the scanning, the structure detected as a function of movement with the catheter;tracking by the processor, the structure represented in the data from the scanning, the tracking using sampling based on a previous location of the structure; andoutputting, by the processor, an image of the structure.2. The method of claim 1 , wherein the catheter is a pigtail catheter.3. The method of claim 1 , wherein the catheter is located at the aortic root of the object.4. The method of claim 1 , wherein the data from the scanning includes a plurality of fluoroscopic images.5. The method of claim 1 , further comprising:removing the inserted catheter.6. The method of claim 1 , further comprising:constructing a bounding box around the detected structure; andwherein tracking the structure includes sampling within the limits defined by the bounding box.7. The method of claim 1 , wherein the tracking of the structure includes using a discrete structure forest to track features of the structure.8. The method of claim 7 , wherein tracking the structure comprises tracking the density of the structure claim 7 , ...

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Номер записи: 97
11-01-2018 дата публикации

Diagnosis support system, diagnosis support apparatus, and recording medium

Номер: US20180008223A1
Автор: Hideaki Yamagata
Принадлежит: Ricoh Co Ltd

A diagnosis support system includes a calculator configured to calculate position information indicating a positional relationship between a biological sensor and a predetermined region of a measurement target; and an extractor configured to extract, from biological information already diagnosed, biological information that is associated with position information, which is similar to the position information calculated by the calculator.

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Номер записи: 98
14-01-2021 дата публикации

SYSTEMS AND METHODS FOR TREATMENT PLANNING BASED ON PLAQUE PROGRESSION AND REGRESSION CURVES

Номер: US20210007807A1
Автор: Choi Gilwoo, Grady Leo, SANKARAN Sethuraman, SCHAAP Michiel, Taylor Charles A., Zarins Christopher K.
Принадлежит:

Systems and methods are disclosed for evaluating a patient with vascular disease. One method includes receiving patient-specific data regarding a geometry of the patient's vasculature; creating an anatomic model representing at least a portion of a location of disease in the patient's vasculature based on the received patient-specific data; identifying one or more changes in geometry of the anatomic model based on a modeled progression or regression of disease at the location; calculating one or more values of a blood flow characteristic within the patient's vasculature using a computational model based on the identified one or more changes in geometry of the anatomic model; and generating an electronic graphical display of a relationship between the one or more values of the calculated blood flow characteristic and the identified one or more changes in geometry of the anatomic model. 120-. (canceled)21. A computer-implemented method of evaluating a patient with vascular disease , the method comprising:receiving patient-specific image data regarding a geometry of the patient's vasculature;creating, based on the received patient-specific image data, a patient-specific anatomic model representing a diseased region of the patient's vasculature at a first point of time;computing a characteristic of plaque using one or more image features of the received patient-specific image data;predicting, using the computed characteristic of plaque, a change to a geometric parameter of the diseased region of the patient's vasculature at a second point of time;modifying a geometry of the patient-specific anatomic model to include the predicted change to the geometric parameter of the diseased region at the second point in time; andcomputing a value of a vessel characteristic using the modified patient-specific anatomic model.22. The computer-implemented method of claim 21 ,generating a treatment recommendation or risk assessment based on the computed value of the vessel ...

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Номер записи: 99
08-01-2015 дата публикации

X-RAY APPARATUS AND X-RAY IMAGE DIAGNOSTIC APPARATUS

Номер: US20150010131A1
Автор: Arisaka Kimitaka, Hibino Atsushi, Sairaiji Tetsuji
Принадлежит:

In order to provide an X-ray apparatus and an X-ray image diagnostic apparatus that reduce uncomfortable feeling due to exhaust heat generated when air-cooling an X-ray tube device, the X-ray image diagnostic apparatus is comprised of an X-ray tube, the X-ray tube device including the X-ray tube device housing that accommodates the X-ray tube, the X-ray detector that detects an X-ray generated from the X-ray tube device, and the arm that supports the X-ray tube device and the X-ray detector with them facing each other, the X-ray tube device and the X-ray detector are located respectively on an end side and the other end side of the arm , and the first air flow path where air passed through the outer surface of the X-ray tube device housing flows inside the arm is formed. 1. An X-ray apparatus comprising:an X-ray tube device having an X-ray tube and an X-ray tube device housing that accommodates the X-ray tube; an X-ray detector detecting an X-ray generated from the X-ray tube device; and an arm supporting the X-ray tube device on an end side and the X-ray detector on the other end side with them facing each other,wherein a first air flow path where air that passed through the outer surface of the X-ray tube device housing flows is formed inside the arm.2. The X-ray apparatus according to claim 1 , comprising:a heat-release fin having a fin group where an end contacts an outer surface and where the other end is an open end on the outer surface of the X-ray tube device housing,wherein a second air flow path that is a flow path where air passes through the fin group and that is continuously connected to the first air flow path is formed in the X-ray tube device.3. The X-ray apparatus according to claim 2 , further comprising:a housing cover covering a surface facing the X-ray detector in the X-ray tube device housing; andan open end contact portion contacting an open end of the fin group on a surface facing the X-ray tube device of the housing cover,wherein the second ...

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Номер записи: 100