Rational-Gain-Compensation for Attenuation in Ultrasonic Cardiac Imaging
Rational-Gain-Compensation for Attenuation in Ultrasonic Cardiac Imaging
复制标题
超声心脏成像衰减的合理增益补偿
DOI：
10.1109/ultsym.1981.197695
复制
发表时间：
1981
影响因子：
6.7
通讯作者：
D. Skorton
中科院分区：
文献类型：
--
作者：
H. Melton;D. Skorton
直接、可靠地检测活体心肌梗死的第一步是合理解释换能器和心脏内感兴趣部位之间的衰减。测试了一种在实时、二维超声扫描中逐行补偿衰减的方法。这种方法依赖于这样一个事实，即无论正常或异常，来自血液的超声散射比来自心肌的散射小得多(没有)。当“不存在”后向散射时，接收器增益以适合补偿血液衰减的速率增加；当“存在”后向散射时，接收器增益以补偿心肌衰减所需的速率改变。该方法为比较心肌不同区域的背向散射水平提供了合理的依据。
The first step toward direct, reliable detection of myocardial infarction in vivo is a rational accounting for attenuation present between the transducer and sites of interest within the heart. One method was tested which compensated for attenuation on a line-by-line basis in real-time, two-dimensional ultrasonic scans. This method depends on the fact that ultrasonic scatter from blood is much smaller (absent) than scatter from myocardium, whether normal or abnormal. When back-scatter was "absent", receiver gain was increased at a rate suitable to compensate for attenuation by blood; when backscatter was "present", receiver gain was changed at a rate needed to compensate for attenuation by myocardium. This method provides a rational basis for comparison of back-scatter levels between different regions of myocardium.