DIALLO, Mohamadou Malal; COUDIÈRE, Yves; DUBOIS, Rémi

doi:10.1007/978-3-030-78710-3_53

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Licence d’utilisation du document

DIALLO, Mohamadou Malal
Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
Institut de Mathématiques de Bordeaux [IMB]
IHU-LIRYC
Institut de rythmologie et modélisation cardiaque [Pessac] [IHU Liryc]

COUDIÈRE, Yves
Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]
Institut de Mathématiques de Bordeaux [IMB]
Institut de rythmologie et modélisation cardiaque [Pessac] [IHU Liryc]

DUBOIS, Rémi
Centre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]
Institut de rythmologie et modélisation cardiaque [Pessac] [IHU Liryc]

Langue

Communication dans un congrès

Ce document a été publié dans

Lecture Notes in Computer Science, Lecture Notes in Computer Science, FIMH 2021 - 11th International Conference on Functional Imaging and Modeling of the Heart, 2021-06-21, Stanford / Virtual. 2021-06-18, vol. LNCS-12738, p. 551-560

Springer International Publishing

Résumé en anglais

Electrocardiographic Imaging (ECGI) is a non-invasive procedure that allows to reconstruct the electrical activity of the heart from body surface potential map (BSPM). In this paper, we present a volume model to solve the electrocardiography inverse problem capable to take into account structural informations obtained by imaging techniques. The direct problem maps a volume current in the cardiac muscle (ventricles) to the body surface electrical measures. The model is based on coupling bidomain heart model with torso conduction. The corresponding inverse problem is solved with the Tikhonov regularization. Simulated database are used for the evaluation of this method and we compared them to standard method of fundamental solutions (MFS). The sensitivity to noise is also assessed. The correlation coefficients (CC) and the relative error (RE) of activation times were computed. Results show that the CC (respectively RE) median is respectively 0.75 for the volume model and 0.4 for the MFS (respectively 0.31 vs 0.35) on the epicardium. On the endocardium, the CC and the RE median are 0.65 and 0.33 for the volume method. In conclusion, the volume method performs better than the method of fundamental solutions (MFS) for any noise level, and reconstruct in addition endocardial information.< Réduire

Mots clés en anglais

Inverse problem

Scar

ECGI

Electrocardiography

URI

https://oskar-bordeaux.fr/handle/20.500.12278/191300

DOI

http://dx.doi.org/10.1007/978-3-030-78710-3_53

Projet Européen

ERC Grant ECSTATIC 715093

Project ANR

L'Institut de Rythmologie et modélisation Cardiaque - ANR-10-IAHU-0004

Origine

Importé de hal

Unités de recherche

Institut de Mathématiques de Bordeaux (IMB) - UMR 5251