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Article Dans Une Revue International Journal for Numerical Methods in Biomedical Engineering Année : 2012

Reduced-order modeling for cardiac electrophysiology. Application to parameter identification

Résumé

A reduced-order model based on Proper Orthogonal Decomposition (POD) is proposed for the bidomain equations of cardiac electrophysiology. Its accuracy is assessed through electrocardiograms in various configurations, including myocardium infarctions and long-time simulations. We show in particular that a restitution curve can efficiently be approximated by this approach. The reduced-order model is then used in an inverse problem solved by an evolutionary algorithm. Some attempts are presented to identify ionic parameters and infarction locations from synthetic ECGs.
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Dates et versions

hal-00644396 , version 1 (24-11-2011)
hal-00644396 , version 2 (07-12-2011)

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Muriel Boulakia, Elisa Schenone, Jean-Frédéric Gerbeau. Reduced-order modeling for cardiac electrophysiology. Application to parameter identification. International Journal for Numerical Methods in Biomedical Engineering, 2012, 28, pp.727-744. ⟨10.1002/cnm.2465⟩. ⟨hal-00644396v2⟩
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