GASSA, Narimane; BOONSTRA, Machteld; SVEHLIKOVA, Jana; BROOKS, Dana; NARAYAN, Akil; VAN DAM, Peter; MACLEOD, Rob; TATE, Jess; ZEMZEMI, Nejib

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Licence d’utilisation du document

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

BOONSTRA, Machteld
University Medical Center [Utrecht] [UMCU]

SVEHLIKOVA, Jana
Institute of Measurement Science [IMS]

Langue

Communication dans un congrès

Ce document a été publié dans

Computing in Cardiology 2022, 2022-09-04, Tampere.

Résumé en anglais

Electrocardiographic Imaging (ECGI) is a promising tool to non-invasively map the electrical activity of the heart using body surface potentials (BSPs) and the patient specific anatomical data. One of the first steps of ECGI is the segmentation of the heart and torso geometries. In the clinical practice, the segmentation procedure is not fullyautomated yet and is in consequence operator-dependent. We expect that the inter-operator variation in cardiac segmentation would influence the ECGI solution. This effect remains however non quantified. In the present work, we study the effect of segmentation variability on the ECGI estimation of the cardiac activity with 262 shape models generated from fifteen different segmentations. Therefore, we designed two test cases: with and without shape model uncertainty. Moreover, we used four cases for ectopic ventricular excitation and compared the ECGI results in terms of reconstructed activation times and excitation origins. The preliminary results indicate that a small variation of the activation maps can be observed with a model uncertainty but no significant effect on the source localization is observed.< Réduire

URI

https://oskar-bordeaux.fr/handle/20.500.12278/190709

Projet Européen

Personalized Therapies for Atrial Fibrillation. A Translational Approach
Transparency of Food Pricing

Project ANR

L'Institut de Rythmologie et modélisation Cardiaque - ANR-10-IAHU-0004
Plateforme multi-modale d'exploration en cardiologie

Origine

Importé de hal

Unités de recherche

Institut de Mathématiques de Bordeaux (IMB) - UMR 5251