Ultrasound system for estimating the speed of sound in body tissue
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United States of America Patent
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Jun 17, 1997
Grant Date -
N/A
app pub date -
Jun 25, 1996
filing date -
Jun 25, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An ultrasound system (50) estimates the speed of sound in the tissue (60) under examination. The ultrasound system obtains a series of test images (150) using different estimates of the speed of sound in the body tissue. For each image produced, the ultrasound system computes a function that is indicative of image quality for one or more regions of interest (152) in the test image. The image quality function exhibits a minimum or maximum when computed for a region of interest obtained at a speed of sound substantially equal to a true speed of sound in the tissue. The ultrasound system selects the test image having the minimum or maximum function value and obtains subsequent images of the tissue using the speed of sound used to obtain the test image selected.
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