Paper Info
Title
Filament behavior in a computational model of ventricular fibrillation in the canine heart.
Abstract
The aim of this paper was to quantify the behavior of filaments in a computational model of re-entrant ventricular fibrillation. We simulated cardiac activation in an anisotropic monodomain with excitation described by the Fenton-Karma model with Beeler-Reuter restitution, and geometry by the Auckland canine ventricle. We initiated re-entry in the left and right ventricular free walls, as well as the septum. The number of filaments increased during the first 1.5 s before reaching a plateau with a mean value of about 36 in each simulation. Most re-entrant filaments were between 10 and 20 mm long. The proportion of filaments touching the epicardial surface was 65%, but most of these were visible for much less than one period of re-entry. This paper shows that useful information about filament dynamics can be gleaned from models of fibrillation in complex geometries, and suggests that the interplay of filament creation and destruction may offer a target for antifibrillatory therapy.
Year
DOI
Venue
2004
10.1109/TBME.2003.820356
IEEE transactions on bio-medical engineering
Keywords
Field
DocType
reentrant filaments,electrocardiography,epicardial surface,biomembrane transport,bioelectric potentials,fenton-karma model,ventricular fibrillation,filament behavior,left ventricular free wall,cardiac activation,physiological models,filament destruction,10 mm,septum,right ventricular free wall,canine heart,filament dynamics,20 mm,anisotropic monodomain,auckland canine ventricle,computational model,beeler-reuter restitution,1.5 s,antifibrillatory therapy,filament creation
Biomedical engineering,Fibrillation,Mean value,Ventricular fibrillation,Protein filament,Computer science,Ventricle,Electrocardiography
Journal
Volume
Issue
ISSN
51
1
0018-9294
Citations 
PageRank 
References 
3
1.00
0
Authors
2
Name
Order
Citations
PageRank
Richard H. Clayton1219.79
Arun V. Holden25220.71