Um modelo de acoplamento eletromecânico do tecido cardíaco através do método dos elementos finitos

Abstract

Many cardiac diseases can be related to irregular patterns of electrical activation on the walls of the heart, these diseases are called arrhythmia. In these cases computational modelling has shown to be a useful tool in the investigation and understanding of the complex biophysical processes related to the cardiac electromechanical behavior. The present dissertation aims to study the coupling of the bioelectromechanical behavior in cardiac tissues such those which occur in the wall of the left ventricle. The study involves the determination of the propagation of electrical waves in the tissues of the heart and the determination of stresses and deformations in theses tissues through non-linear analysis with nite deformation considering isotropic hyperelastic materials characterized by Mooney-Rivlin materials.