Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1998-11-27
2000-04-25
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600455, A61B 800
Patent
active
060538694
ABSTRACT:
By scanning a cross-section of an inside of a subject through an organ of interest with an ultrasonic wave it is possible to generate tissue cross-sectional data relating to the cross-section and motion velocity data relating to the region of interest. The motion velocity data is comprised of transmit/receive direction components of the ultrasonic wave. In order to obtain a motion velocity, or its near-motion velocity, of a direction of interest, it is necessary to angle-compensate the motion velocity data in accordance with a given direction of interest. According to the present invention, the direction-of-interest necessary to effect the angle compensation is assumed based on the contour of the organ of interest which can be extracted from the tissue cross-sectional data.
REFERENCES:
patent: 5615680 (1997-04-01), Sano
patent: 5622174 (1997-04-01), Yamazaki
patent: 5800356 (1998-09-01), Criton et al.
A. Heimdal, et al., IEEE Ultrasonics Symposium Proc., pp. 1423-1426, Real-Time Strain Velocity Imaging (SVI), 1997.
A. Heimdal, et al., Journal of the American Society of Echocardiography, vol. 11, No. 11, pp. 1013-1019, "Real-Time Strain Rate Imaging of the Left Ventricle by Ultrasound", Nov. 1998.
Kawagishi Tetsuya
Mine Yoshitaka
Kabushiki Kaisha Toshiba
Lateef Marvin M.
Patel Maulin
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