Speed-curvature relation for a discrete model of myocardium

Author

Feldman, Andrew B. ; Chernyak, Yuri 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

1846

Abstract

The authors derive the curvature relation (the dependence of the wave speed on wavefront curvature) for a discrete model of an excitable medium allowing inhomogeneities in the limiting case of a medium with no recovery process. The model incorporates an element weighting distribution w that is varied locally to match the required values of the local plane wave speed, critical curvature, and effective diffusion constant. The authors successfully linked their discrete model to myocardium using valves obtained from the Luo-Rudy model

Keywords

biodiffusion; bioelectric phenomena; cardiology; muscle; physiological models; Luo-Rudy model; cardiac electrophysiology; discrete myocardium model; effective diffusion constant; element weighting distribution; speed-curvature relation; wavefront curvature; Engineering in Medicine and Biology Society; Equations; Geometry; Lattices; Myocardium; Nonhomogeneous media; Physics; Switches;

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.1996.646284

Filename

646284