Please use this identifier to cite or link to this item:
|Title:||Left ventricular model using second-order electromechanical coupling: effects of viscoelastic damping||Authors:||Karam, Elie
|Affiliations:||Department of Electrical Engineering
Department of Electrical Engineering
|Issue Date:||2006||Part of:||International journal of biomedical and biological engineering||Volume:||1||Issue:||11||Start page:||168||End page:||173||Abstract:||
It is known that the heart interacts with and adapts to its venous and arterial loading conditions. Various experimental studies and modeling approaches have been developed to investigate the underlying mechanisms. This paper presents a model of the left ventricle derived based on nonlinear stress-length myocardial characteristics integrated over truncated ellipsoidal geometry, and second-order dynamic mechanism for the excitation-contraction coupling system. The results of the model presented here describe the effects of the viscoelastic damping element of the electromechanical coupling system on the hemodynamic response. Different heart rates are considered to study the pacing effects on the performance of the left-ventricle against constant preload and afterload conditions under various damping conditions. The results indicate that the pacing process of the left ventricle has to take into account, among other things, the viscoelastic damping conditions of the myofilament excitation-contraction process.
|URI:||https://scholarhub.balamand.edu.lb/handle/uob/2194||Open URL:||Link to full text||Type:||Journal Article|
|Appears in Collections:||Department of Electrical Engineering|
Show full item record
checked on Oct 22, 2021
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.