G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 29/00 (2006.01) G01N 29/07 (2006.01) G01N 29/22 (2006.01) G01N 29/38 (2006.01) G01N 29/50 (2006.01) G01S 15/89 (2006.01) G01N 3/00 (2006.01)
Patent
CA 2068740
An improved ultrasonic pulse-echo method and apparatus that has particular application in making precision measurements of compressibility in any backscattering material, in particular organic tissue, is disclosed. The method employs a standard transducer or transducer containing device which is translated transaxially, thereby compressing or displacing a proximal region of a target body in small known increments. At each increment, a pulse is emitted and an echo sequence (A-line) is detected from regions within the target along the sonic travel path or beam of the transducer. Resulting time shifts in echo segments corresponding to features in the target provide relative and quantitative information concerning compressibility of the target.
Ophir Jonathan
Yazdi Youseph
Board Of Regents The University Of Texas System
Finlayson & Singlehurst
The Board Of Regents Of The University Of Texas System
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