Method and apparatus for compensating during ultrasound...

Details Method and apparatus for compensating during ultrasound... Method and apparatus for compensating during ultrasound...

A - Human Necessities

61

B

349/36

A61B 10/00 (2006.01) G01N 29/40 (2006.01) G01S 7/52 (2006.01) G01S 17/88 (2006.01)

Patent

CA 1153099

PHA 20917 16-6-1980 ABSTRACT: "Method and apparatus for compensation during ultrasound examination". The time-gain function of an ultrasound receiver for medical examinations is modified to compensate for different attenuation characteristics in body structures. The slope of the time-gain function is increased at times associated with pulse transmission through the highly attenuating body wall and may be decreased at times associated with pulse transmission through fluid filled body structures. The time-gain compensation, in combination with probe focus compensation and a highly linear receiver transfer function provides sharply in- creased diagnostic quality. The location and attenuating characteristics of body structures may be determined from distinctive signatures in ultrasound echos.

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