Prediction of Deformation in the Potassium-Arrested Canine Left Ventricle Using the Finite Element Model

概要

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A finite element model for the diastolic canine left ventricle based on large deformation theory has been developed. The myocardial stress-strain relation determined by the diastolic pressure-volume relation was used in this study. The ventricle was assumed as a homogeneous, isotropic, thick-walled solid of revolution with variable thickness. The predicted shapes based on the model were in close agreement with the shapes recorded by two-dimensional echocardiography. The stress calculated at the subendocardium was considerably larger as compared to that at the subepicardium. For example, at an intraventricular pressure of 10 cmH_2O, the stress at the subendocadium was 80 g/cm^2 and about four times larger than that at the subepicardium.
東海大学の論文