DocumentCode
3351403
Title
Speed-curvature relation for a discrete model of excitable media
Author
Chernyak, Yuri B. ; Feldman, Andrew B. ; Cohen, Richard J.
Author_Institution
Dept. of Phys., Harvard Univ., Cambridge, MA, USA
Volume
5
fYear
1996
fDate
31 Oct-3 Nov 1996
Firstpage
1921
Abstract
The authors derive expressions for the dependence of propagation speed on wavefront curvature directly from the excitation rules for a discrete model of an excitable medium in the limiting case of no recovery. This allows the authors to find the plane wave speed, critical curvature, and effective diffusion constant of the medium. Reproduction of these features is essential for modeling reentrant arrhythmias in the heart
Keywords
biodiffusion; bioelectric phenomena; cardiology; physiological models; discrete model; effective diffusion constant; excitable media; excitation rules; heart; limiting case; no recovery; plane wave speed; propagation speed; reentrant arrhythmias; speed-curvature relation; Boundary conditions; Displays; Eigenvalues and eigenfunctions; Equations; Geometry; Heart; Page description languages; Physics; Spirals; Steady-state;
fLanguage
English
Publisher
ieee
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
Type
conf
DOI
10.1109/IEMBS.1996.646321
Filename
646321
Link To Document