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RESEARCH PAPERS

Stresses in Left Ventricular Wall and Biaxial Stress-Strain Relation of the Cardiac Muscle Fiber for the Potassium-Arrested Heart

[+] Author and Article Information
H. Abé

Department of Mechanical Engineering, Tohoku University, Sendai, Japan

T. Nakamura, M. Motomiya, K. Konno

Department of Internal Medicine, Research Institute for Tuberculosis, Leprosy and Cancer, Tohoku University, Sendai, Japan

S. Arai

Department of Pathology, School of Medicine, Yamagata University, Yamagata, Japan

J Biomech Eng 100(3), 116-121 (Aug 01, 1978) (6 pages) doi:10.1115/1.3426201 History: Received February 09, 1978; Online October 21, 2010

Abstract

Wall stresses and pseudo-strain energy function (W) were determined analytically from the pressure-volume relationships taken from (6 hypertrophied and 5 normal) canine hearts on the basis of large elastic deformation theory by assuming a spherical geometry of the left ventricles. The biaxial stress-strain relation of the myocardium was obtained from the function W. This relation was found to be more appropriate than the uniaxial relations for comparison of ventricles having different pressure-volume relationships and/or different sizes, since the uniaxial relation cannot be determined uniquely only from the pressure-volume relationship.

Copyright © 1978 by ASME
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