Cellular automata model of cardiac excitation waves
Cellular automata model of cardiac excitation waves
复制标题
心脏激励波的元胞自动机模型
DOI:
10.1007/s003990050052
复制
发表时间:
1999
影响因子:
--
通讯作者:
R. Cohen
中科院分区:
文献类型:
--
作者:
A. Feldman;Y. Chernyak;R. Cohen
Summary We present a new computer simulation technology suitable for rapid and quantitatively reliable simulation of propagating excitation waves in anisotropic myocardium. Our model utilizes a finite element or cellular automata (CA) approach in which the elements undergo transitions between a finite number of states (e.g., excited, refractory) according to specific rules. The transition parameter values for the CA elements at each location are computed using the characteristic relations governing propagation at the given point in the tissue, such as the anisotropy ratio and the dependence of the plane wave speed on diastolic interval. The model is well-suited for analysis of arrhythmogenesis and hypothetical therapeutic interventions. Once the effects of an antiarrhythmic drug or disease process on the characteristic relationships have been determined for different cardiac cell types, the electrical activity in tissue with the modified properties can be simulated by our model. In this article, we discuss the basic structure of the model and use it to demonstrate wavelet formation in myocardium with a fixed scar (infarct) in the presence of a sodium channel blocker. This mechanism may help explain the proarrhythmic effects of these agents.
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影响因子:
20.1
作者:
LUO, CH;RUDY, Y
通讯作者:
RUDY, Y
影响因子:
3.4
作者:
J. Starobin;Y. Zilberter;E. M. Rusnak;C. Starmer
通讯作者:
J. Starobin;Y. Zilberter;E. M. Rusnak;C. Starmer
影响因子:
--
作者:
Neu,JC;Krassowska,W
通讯作者:
Krassowska,W
DOI:
10.1152/ajpheart.1993.265.6.h2117
发表时间:
1993-12
期刊:
The American journal of physiology
影响因子:
--
作者:
C. Nordin
通讯作者:
C. Nordin
影响因子:
3.4
作者:
SEPULVEDA, NG;ROTH, BJ;WIKSWO, JP
通讯作者:
WIKSWO, JP