Rational Gain Compensation for Attenuation in Cardiac Ultrasonography

A new method of compensating for the attenuation of ultrasound by chest wall, myocardium and blood has been devised by using an optimum threshold to distinguish between blood and myocardium. This allows changing receiver gain at rates suitable for either blood or myocardium for each line-of-sight fo...

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Bibliographic Details
Published inUltrasonic imaging Vol. 5; no. 3; pp. 214 - 228
Main Authors Melton, Hewlett E., Skorton, David J.
Format Journal Article
LanguageEnglish
Published Los Angeles, CA SAGE Publications 01.07.1983
Subjects
gain-compensation
quantitative echocardiography
echocardiography
Diagnostic ultrasound
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Summary:A new method of compensating for the attenuation of ultrasound by chest wall, myocardium and blood has been devised by using an optimum threshold to distinguish between blood and myocardium. This allows changing receiver gain at rates suitable for either blood or myocardium for each line-of-sight forming a real-time image. Compensation artifacts arising from the effects of speckle or phase cancellation are minimized by using a one-bit digital filter after threshold detection. This method of compensation is a necessary first step toward quantitative two-dimensional echocardiography.
ISSN:0161-7346
1096-0910
DOI:10.1177/016173468300500302