Activité électrique du coeur
A. Franchitti*, Y. Maday*

Our interest in cardiac electrical activity has led us to model the heart as follows: first a reconstruction of the geometry is performed (restricted here to two ventricules) and a 3D mesh is then constructed; then the electrical signal propagation is described by Aliev-Panfilov 2-variables set of equations which are discretized by a finite element method. The chosen model is able to reproduce an action potential quite accurately, qualitatively close to the physiological one. The simulation presented here (Medit) shows a signal initiated at the level of the sinusal node, propagating faster along its bundle (bundle of Hiss), and reaching rapidly both of the cardiac chambers.