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Virtual electrode polarization and current activation with monodomain equations

hal.structure.identifierModélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
hal.structure.identifierInstitut de Mathématiques de Bordeaux [IMB]
dc.contributor.authorCOUDIÈRE, Yves
hal.structure.identifierModélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
dc.contributor.authorRIOUX, Myriam
dc.date.accessioned2024-04-04T02:18:21Z
dc.date.available2024-04-04T02:18:21Z
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/189303
dc.description.abstractEnThe bidomain model is nowadays one of the most accurate mathematical descriptions of the electrical activity in the heart. From now on, it was believed to be the only model for accurate simulations of cardiac muscle stimulation in a clinically relevant manner, i.e. through extracellular electrodes. In this paper, we develop a computationally efficient and accurate approximation of the bidomain model that allows for extracellular stimulation and accounts for unequal anisotropy ratios between intra-and extra-cellular media: the current-lifted monodomain model. We prove its use in the isolated heart by reproducing four types of extracellular activation that exhibit virtual electrode polarization. The simplicity of the code implementation and the fact that the computational cost is equal to the standard monodomain model henceforth give an excellent alternative to the bidomain model for expensive simulations like arrhythmia, fibrillation, and their respective treatments, e.g. signal guided catheter ablation and defibrillation.
dc.language.isoen
dc.title.enVirtual electrode polarization and current activation with monodomain equations
dc.typeDocument de travail - Pré-publication
dc.subject.halInformatique [cs]/Modélisation et simulation
dc.subject.halInformatique [cs]/Analyse numérique [cs.NA]
dc.subject.halSciences du Vivant [q-bio]/Médecine humaine et pathologie/Cardiologie et système cardiovasculaire
bordeaux.hal.laboratoriesInstitut de Mathématiques de Bordeaux (IMB) - UMR 5251*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionBordeaux INP
bordeaux.institutionCNRS
hal.identifierhal-00986337
hal.version1
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00986337v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=COUDI%C3%88RE,%20Yves&RIOUX,%20Myriam&rft.genre=preprint


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