Study of unipolar electrogram morphology in a computer model of atrial fibrillation

Fiche du document

Auteurs
Date

29 avril 2024

Type de document
Périmètre
Langue
Identifiants
Source

Papyrus : le dépôt institutionnel de l'Université de Montréal

Collection

Bibliothèques numériques de l'Université de Montréal

Organisation

Bibliothèque de l'Université de Montréal

Mots-clés Und

Computer modeling Electrograms Atrial fibrillation Anisotropy

Sujets proches En

Pattern Model

Citer ce document

Vincent Jacquemet et al., « Study of unipolar electrogram morphology in a computer model of atrial fibrillation », Papyrus : le dépôt institutionnel de l'Université de Montréal, ID : 10.1046/j.1540.8167.90308.x

Métriques

Partage / Export

Résumé 0

Introduction: Electrograms exhibit a wide variety of morphologies during atrial fibrillation (AF). The basis of these time courses, however, is not completely understood. In this study, data from computer models were studied to relate features of the signals to the underlying dynamics and tissue substrate. Methods and Results: A computer model of entire human atria with a gross fiber architecture based on histology and membrane kinetics based on the Courtemanche et al. atrial model was developed to simulate paced activation and simulated AF. Unipolar electrograms were computed using a current source approximation at 256 sites in right atrium, to simulate a mapping array. The results show the following: (1) In a homogeneous and isotropic tissue, the presence of highly asymmetric electrograms is rare (

document thumbnail

Par les mêmes auteurs

Sur les mêmes sujets