Author(s)

R.M. Shoucri

Abstract

The itramyocardial stress and the mechanics of the left ventricular contraction R.M. Shoucri Department of Mathematics and Computer Science Royal Military College of Canada Kingston, Ontario, Canada, k7k 76.1 Abstract A mathematical model has been developed in which the force generated by the fibres of the myocardium is represented as forcelunit volume of the myocardium. By using this approach, new indexes have been derived that can be used to express the ventriculo-arterial coupling and to differentiate between various cardiomyopathies. It has also been possible to derive a mathematical expression for the intramyocardial stress induced in the passive medium of the myocardium as the sum of two components, one component induced by the intraventricular pressure and the other component induced by the forcelunit volume of the myocardium representing the fibres force. Relations between the intramyocardial stress and the parameters describing the end-systolic pressurevolume relation (espvr) are pre

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