Title :
Stability of spiral wave reentry on curved surfaces
Author :
Rogers, Jack M. ; Ideker, Raymond E. ; Smith, William M.
Author_Institution :
Alabama Univ., Birmingham, AL, USA
fDate :
31 Oct-3 Nov 1996
Abstract :
Reentrant spiral waves propagating on curved surfaces lying in 3D space were modeled using a finite element solution of a modified FitzHugh-Nagumo system. Under some conditions, surface topology could induce drift of nominally stationary spirals, even in the absence of heterogeneity or anisotropy. These dynamics may be important in the maintenance of reentrant arrhythmias
Keywords :
bioelectric phenomena; cardiology; finite element analysis; physiological models; 3D space; anisotropy; cardiac electrophysiology; curved surfaces; modified FitzHugh-Nagumo system; nominally stationary spirals; nonuniform fiber orientation; reentrant arrhythmias maintenance; spiral wave reentry stability; surface topology; tissue heterogeneity; ventricular fibrillation; ventricular tachyarrhythmias; Anisotropic magnetoresistance; Biomembranes; Finite element methods; Geometry; Lifting equipment; Spirals; Stability; Surface waves; Tail; Topology;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.652798
