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

Author:

Abe´ H.1,Nakamura T.2,Motomiya M.2,Konno K.2,Arai S.3

Affiliation:

1. Department of Mechanical Engineering, Tohoku University, Sendai, Japan

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

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

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.

Publisher

ASME International

Subject

Physiology (medical),Biomedical Engineering

Cited by 15 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. A Multiaxial Constitutive Law for Mammalian Left Ventricular Myocardium in Steady-State Barium Contracture or Tetanus;Journal of Biomechanical Engineering;1998-08-01

2. Physiology of left ventricular diastolic function;Baillière's Clinical Anaesthesiology;1997-12

3. Soft Tissues;Data Book on Mechanical Properties of Living Cells, Tissues, and Organs;1996

4. Residual Stress in the Left Ventricle;Biomechanics;1996

5. Changes in passive mechanical stiffness of myocardial tissue with aneurysm formation.;Circulation;1994-05

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