BOUHAMAMA, Oumayma; WEYNANS, Lisl; BEAR, Laura

Métadonnées

Licence d’utilisation du document

BOUHAMAMA, Oumayma
Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]

WEYNANS, Lisl
Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]

BEAR, Laura
Institut de rythmologie et modélisation cardiaque [Pessac] [IHU Liryc]
Institut National de la Santé et de la Recherche Médicale [INSERM]
Centre de recherche Cardio-Thoracique de Bordeaux [Bordeaux] [CRCTB]

Langue

Communication dans un congrès

Ce document a été publié dans

CinC 2021 - Computing in Cardiology, 2021-09-12, Brno.

Résumé en anglais

Torso surface and ventricular epicardial potentials were recorded simultaneously in anesthetized, closed-chest pigs (n=5) during sinus rhythm. Activation times were estimated from recorded torso potentials using three classical ECGI methods and a new method called the Patchwork Method (PM), which locally selects the optimal ECGI method and has demonstrated its efficiency with simulated data. The aim of this study was to evaluate the Patchwork method using experimental data in sinus rhythm. By comparing the classic ECGI reconstructions to recorded epicardial activation mapping, several inaccuracies in the ECGI maps are highlighted in this study. This involved inaccuracies in reconstructing activating maps, locating breakthrough sites and the production of artificial lines of block. However, the PM overcomes these restrictions, demonstrating its abilities to accurately reconstruct activation maps (CC=0.90 [0.86 ; 0.92] and RE= 0.20 [0.19 ; 0.24]) and localize epicardial breakthrough sites (LE= 17.16 [8.87 ; 22.14]). Furthermore, it reduced the frequency of artificial lines of block (2 of 5 pig hearts).< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/191449

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