哺乳动物器官内的体内B/A测定。

In vivo B/A determination in a mammalian organ.

作者信息

Zhang J, Dunn F

出版信息

J Acoust Soc Am. 1987 May;81(5):1635-7. doi: 10.1121/1.394519.

Abstract

Investigations of the ultrasonic nonlinearity parameter B/A have been restricted previously to in vitro preparations. The parameter B/A has now been determined in vivo in cat liver and found to have the same value as in vitro determinations. The finite amplitude method was used, with a substitutional procedure to improve accuracy.

摘要

以往对超声非线性参数B/A的研究仅限于体外标本。现在已在猫肝脏活体中测定了该参数B/A，发现其值与体外测定值相同。采用了有限振幅法，并采用替代程序来提高准确性。