On the Performance of an Implicit–Explicit Runge--Kutta Method in Models of Cardiac Electrical Activity
On the Performance of an Implicit–Explicit Runge--Kutta Method in Models of Cardiac Electrical Activity
复制标题
论隐式-显式龙格--库塔方法在心电活动模型中的表现
DOI:
10.1109/tbme.2007.914677
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发表时间:
2008
影响因子:
4.6
通讯作者:
R. C. Dean
中科院分区:
文献类型:
--
作者:
R. Spiteri;R. C. Dean
Mathematicalmodels of electric activity in cardiac tissue are becoming increasingly powerful tools in the study of cardiac arrhythmias. Considered here are mathematical models based on ordinary differential equations (ODEs) that describe the ionic currents at the myocardial cell level. Generating an efficient numerical solution of these ODEs is a challenging task, and, in fact, the physiological accuracy of tissue-scale models is often limited by the efficiency of the numerical solution process. In this paper, we examine the efficiency of the numerical solution of four cardiac electrophysiological models using implicit-explicit Runge-Kutta (IMEX-RK) splitting methods. We find that variable step-size implementations of IMEX-RK methods (ARK3 and ARK5) that take advantage of Jacobian structure clearly outperform the methods commonly used in practice.
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影响因子:
20.1
作者:
LUO, CH;RUDY, Y
通讯作者:
RUDY, Y
DOI:
10.1152/ajpcell.2001.281.6.c2049
发表时间:
2001-12-01
影响因子:
5.5
作者:
Puglisi, JL;Bers, DM
通讯作者:
Bers, DM
影响因子:
20.1
作者:
Winslow, RL;Rice, J;O'Rourke, B
通讯作者:
O'Rourke, B
影响因子:
20.1
作者:
LUO, CH;RUDY, Y
通讯作者:
RUDY, Y