Ultrasonic diagnostic apparatus, medical image diagnostic apparatus, and medical image processing method
According to one embodiment, an ultrasonic diagnostic apparatus comprises a data acquisition unit, an image generation unit, a calculation unit, a determination unit and a measurement unit. The data acquisition unit acquires a plurality of ultrasonic data. The image generation unit generates a plurality of ultrasonic images by using the plurality of ultrasonic data. The calculation unit calculates a feature amount for determining a shift between the two-dimensional section and a central axis of a target blood vessel. The determination unit determines an optimal image from the plurality of ultrasonic images based on the feature amount. The measurement unit measures an intima-media thickness of the target blood vessel by using the optimal image. 1. An ultrasonic diagnostic apparatus, characterized in that comprises: Data acquisition unit, comprising target the two-dimensional cross section of the blood vessel is scanned repeatedly, obtain a plurality of ultrasonic data; An Image generating unit, using the above-mentioned plurality of ultrasonic data to generate a plurality of ultrasonic Image; Calculating unit, to the above-mentioned calculated and used in the ultrasonic Image of the blood vessel relative to the above-mentioned target of the direction of travel of the center shaft and the above-mentioned two-dimensional cross section of the offset vector of judgment; Judging unit, according to the above-mentioned characteristic quantity, from the above-mentioned plurality of ultrasonic Image judging the best Image; and Measuring unit, using the above-mentioned best Image, in the above-mentioned object of measurement of the film thickness. 2. Ultrasonic diagnostic apparatus according to Claim 1, characterized in that The above-mentioned data obtaining unit, through the organism of the periodic change of the scanning signal, with the above-mentioned signal of organism to establish a corresponding time phase to obtain the above-mentioned plurality of ultrasonic data, The above-mentioned Image generating unit generates the phase of the above-mentioned biological signal to establish a corresponding plurality of above-mentioned ultrasonic Image, The above-mentioned calculation unit from the above-mentioned plurality of ultrasonic Image is selected corresponding to the requirements of a plurality of ultrasonic Image, calculating to the selected of the above-mentioned each ultrasonic Image of the above-mentioned characteristic quantity, The above-mentioned decision unit from the above-mentioned selected one of the plurality of ultrasonic Image determined in the above-mentioned best Image. 3. Ultrasonic diagnostic apparatus according to Claim 2, characterized in that The biological signal is an ECG signal. 4. Ultrasonic diagnostic apparatus according to Claim 1, characterized in that The above-mentioned calculation unit according to the above-mentioned each ultrasonic Image or pixel value of the pixel value to the change of the measurement area, and using the above measured region of the above-mentioned characteristic quantity is calculated. 5. Ultrasonic diagnostic apparatus according to Claim 4, characterized in that The above-mentioned calculation unit calculating the at least two measurement region in the width direction of the width, as the above-mentioned characteristic quantity. 6. Ultrasonic diagnostic apparatus according to Claim 1, characterized in that When the above-mentioned each ultrasonic Image is color Image blood flow imaging, the above-mentioned calculation unit extracts the area of the bag containing the blood flow signal as the measurement region, and calculating the area of the measurement region as the above-mentioned characteristic quantity. 7. Ultrasonic diagnostic apparatus according to Claim 1, characterized in that The above-mentioned decision unit according to the above-mentioned selected each ultrasonic Image generation to the length of the blood vessel relative to the above-mentioned target of the change of the characteristic vector in the direction of the said curve, And according to the above-mentioned generating a plurality of the above-mentioned curves to determine the optimum Image. 8. Ultrasonic diagnostic apparatus according to Claim 1, characterized in that The above-mentioned decision unit to the above-mentioned selected the ultrasonic Image of the blood vessel of the above-mentioned target carry out elliptic fitting the cross section of the ellipse long axis and the short axis and a long as the above-mentioned characteristic quantity, from the above-mentioned selected one of the plurality of ultrasonic Image determined in the above-mentioned best Image. 9. A medical Image diagnostic apparatus, characterized in that comprises: An Image generating unit, using the two-dimensional cross section of the blood vessel containing objects is obtained by shooting a plurality of blood-vessel data, generating a plurality of blood vessel Image; Calculating unit, the above-mentioned for computing the blood vessel Image of the blood vessel relative to the above-mentioned target of the direction of travel of the center shaft and the above-mentioned two-dimensional cross section of the offset vector of judgment; Judging unit, according to the above-mentioned characteristic quantity, from the above-mentioned plurality of blood vessel Image judging the best Image; and Measuring unit, using the above-mentioned best Image, in the above-mentioned object of measurement of the film thickness. 10. Medical Image diagnosis device according to Claim 9, characterized in that The above-mentioned plurality of blood-vessel data is the organism of the periodic changes in the signal of the data obtained by the Image pickup, and the above-mentioned organisms establish a corresponding phase of the signal, The above-mentioned Image generating unit generates the biological signal with the phase of the above-mentioned corresponding to the plurality of blood vessel Image, The above-mentioned calculation unit from the plurality of blood vessel Image is selected corresponding to the requirements of a plurality of blood vessel Image, calculating to the selected of the blood vessel Image of the above-mentioned characteristic quantity, The above-mentioned decision unit from the above-mentioned is selected of the plurality of blood vessel Image in the above-mentioned judging the best Image. 11. Medical Image diagnosis device according to Claim 10, characterized in that The biological signal is an ECG signal. 12. Medical Image diagnosis device according to Claim 9, characterized in that The above-mentioned calculation unit according to the above-mentioned various blood vessel Image pixel value or pixel value to the change of the measurement area, using the above measured region of the above-mentioned characteristic quantity is calculated. 13. Medical Image diagnosis device according to Claim 12, characterized in that The above-mentioned calculation unit calculating the at least two measurement region in the width direction of the width, as the above-mentioned characteristic quantity. 14. Medical Image diagnosis device according to Claim 9, characterized in that When the above-mentioned various blood vessel Image is the Image of the blood flow, the above-mentioned calculation unit extracts the area of the bag containing the blood flow signal as the measurement region, and calculating the area of the measurement region as the above-mentioned characteristic quantity. 15. Medical Image diagnosis device according to Claim 9, characterized in that The above-mentioned decision unit according to the above-mentioned selected each vessel Image of the blood vessel relative to the length direction of the above-mentioned target of the change of the characteristic vector of the said curve, And according to the above-mentioned generating a plurality of the above-mentioned curves to determine the optimum Image. 16. Medical Image diagnosis device according to Claim 9, characterized in that The above-mentioned decision unit to the above-mentioned selected the blood vessel Image of the blood vessel of the above-mentioned target carry out elliptic fitting the cross section of the ellipse long axis and the short axis and a long as the above-mentioned feature, the above-mentioned selected from a plurality of blood vessel Image in the above-mentioned judging the best Image. 17. A medical Image processing method, characterized in that with the following steps: Using the two-dimensional cross section of the blood vessel containing objects is obtained by shooting a plurality of blood-vessel data, generating a plurality of blood vessel Image, The above-mentioned for computing the blood vessel Image of the blood vessel relative to the above-mentioned target of the direction of travel of the center shaft and the above-mentioned two-dimensional cross section of the offset vector of determination, According to the above-mentioned characteristic quantity, from the above-mentioned plurality of blood vessel Image judging the best Image, and Using the above-mentioned optimal Image of a blood vessel is measured in the above-mentioned target film thickness.