Studying cardiac contractility change trend to evaluate cardiac reserve.

There is a very close relationship between the amplitude of the first heart sound and the cardiac contractility. We previously presented the concept of cardiac contractility variability (CCV) and an analysis method. On the basis of the findings from the authors' observation and other previous s...

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Bibliographic Details

Published in:	IEEE Engineering in medicine and biology magazine 21, 1 (2002).
Main Author:	Shouzhong Xiao
Format:	Article
Language:	English
Subjects:	Cardiac contractility change trend. Cardiac contractility variability. Cardiac reserve. Exercise workload. First heart sound amplitude variability. Heart sound signal preprocessing. Noninvasive portable method. Phonocardiogram. T-test.