Title :
Time-Varying Mechanical Properties of the Left Ventricle-A Computer Simulation
Author :
Avanzolini, Guido ; Barbini, Paolo ; Cappello, A. ; Cevese, A.
Author_Institution :
Dipartimento di Sistemi e Informatica, University of Florence
Abstract :
A numerical model of left ventricular (LV) pump function, incorporating cardiac muscle mechanics and LV geometry, was used to derive a simple linear model of local LV contractile properties. This simplified model views the ventricle as a pressure generator (related to isovolumic contraction) coupled with two time-varying elements: 1) a viscous term (related to the dissipative properties of the myocardium), and 2) an elastic term (related to the tension-length curve of activated fiber and to LV geometry).
Keywords :
Computer simulation; Geometry; Heart; Mechanical factors; Muscles; Myocardium; Numerical models; Parameter estimation; Physiology; Solid modeling; Biomechanics; Heart; Heart Ventricles; Models, Cardiovascular; Time Factors;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1985.325490
