Towards the Numerical Simulation of Electrocardiograms

We present preliminary results of the numerical simulation of electrocardiograms (ECG). We consider the bidomain equations to model the electrical activity of the heart and a Laplace equation for the torso. The ionic activity is modeled with a Mitchell-Schaeffer dynamics. We use adaptive semi-implicit BDF schemes for the time discretization and a Neumann-Robin domain decomposition algorithm for the space discretization. The obtained ECGs, although not completely satisfactory, are promising. They allow to discuss various modelling assumptions, for example the relevance of cells heterogeneity, the fiber orientation and the coupling conditions with the torso. To cite this article: In Proceedings of the Fourth International Conference on Functional Imaging and Modeling of the Heart (FIMH07), F.B. Sachse, G. Seemann Eds., pp. 420–429, Springer, 2007.

• Type: Conference
• Year: 2007
• Where: FIMH
• Authors: Muriel Boulakia, Miguel A. Fernández, Jean-Frédéric Gerbeau, Nejib Zemzemi
• Keywords: Domain Decomposition Algorithm, FIMH 2007, Semi-implicit Bdf Schemes, Various Modelling Assumptions