Journal of Applied Physiology AJP: Gastrointestinal and Liver Physiology
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J Appl Physiol 40: 105-107, 1976;
8750-7587/76 $5.00
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Journal of Applied Physiology, Vol 40, Issue 1 105-107, Copyright © 1976 by American Physiological Society

ARTICLES

Semiautomated processing of systolic time intervals

M. A. Frey and R. A. Kenney

Systolic time intervals are commonly used to identify changes in ventricular function. The method described facilitates measurement and calculation of many such intervals. This method utilizes a printed polygraph recording of electrocardiogram, phonocardiogram, and carotid pulse contour; a digitizing device for reading the necessary coordinates from the record; and a minicomputer for calculation of the intervals and for data analysis. Intervals related to approximately 100 pulse beats can be read, calculated, printed in chart and graph form, and subjected to some analyses in about an hour.




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