Abstract
The three-dimensional models of the heart that have been hitherto proposed are critically reviewed. Finite element analysis of the stress distributions in the cardiac walls and valves, and the developed methods for inverse estimation of myocardial elasticity and contractility during cardiac cycles are especially examined to assess their advantages and limitations. Future finite element cardiac researches are projected and regional myocardial studies are advocated. A blood-myocardium composite model which can simulate the measured ventricular wall volume changes during cardic cycles is proposed. A methodology is described for calculating the myocardial fiber contraction during systolic phase based on the proposed model and by use of the measured regional wall thickness and blood volume data. These data are to be collected with a high spatial and temporal resolution scanning device such as the dynamic spatial re-constructor (DSR) available at the Mayo Clinic.
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