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Am J Physiol Regul Integr Comp Physiol 261: R519-R521, 1991;
0363-6119/91 $5.00
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AJP - Regulatory, Integrative and Comparative Physiology, Vol 261, Issue 3 519-R521, Copyright © 1991 by American Physiological Society

ARTICLES

Similar pressure pulse propagation and reflection characteristics in aortas of mammals

J. K. Li and A. Noordergraaf
Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey 08855-0909.

Similar pressure and flow waveforms recorded in mammalian aortas suggest that pulse transmission characteristics may also be similar. We examined the validity of this hypothesis, utilizing allometric equations of pertinent hemodynamic parameters and a model of the arterial system. Results show that both the reflection coefficient and the propagation constant times the aortic length are essentially invariant across the mammalian species investigated. Resolved forward and reflected propagating waves are also similar. These findings suggest that the arterial system in these mammals indeed functions in a similar manner.


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C. M. Quick, D. S. Berger, and A. Noordergraaf
Constructive and destructive addition of forward and reflected arterial pulse waves
Am J Physiol Heart Circ Physiol, April 1, 2001; 280(4): H1519 - H1527.
[Abstract] [Full Text] [PDF]


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