In vivo B/A determination in a mammalian organ.
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.
D000818:Animals; D002415:Cats; D008099:Liver / Q000032:analysis*; D008102:Liver Circulation; D014465:Ultrasonics / Q000295:instrumentation / Q000379:methods*