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二维心肌可激媒质激发波的有效控制
引用本文:李莉,刘力,张广才,王光瑞,曲直. 二维心肌可激媒质激发波的有效控制[J]. 生物医学工程学杂志, 2005, 22(6): 1104-1107
作者姓名:李莉  刘力  张广才  王光瑞  曲直
作者单位:1. 中国医科大学,生物物理教研室,沈阳,110001
2. 北京应用物理与计算数学研究所,北京,100088
基金项目:国家自然科学基金资助项目(30270340)
摘    要:
利用奇异微扰分析,提出对耗散系统的有效控制,将其应用于FHN模型,研究二维心肌可激媒质激发波的控制问题,分别对行波和螺旋波施加旋性和漂移控制。结果表明:行波的传播方向被改变而螺旋波产生漂移,当施加的控制强度达到阈值时,螺旋波被驱除出边界。这些研究结果对临床上治疗心律失常和有效除颤具有理论价值。

关 键 词:FHN模型  有效控制  旋转控制  漂移控制
收稿时间:2003-09-25
修稿时间:2003-09-252004-01-16

Effective Control of Excitable Waves in 2D Cardiac Excitable Media
Li Li,Liu Li,Zhang Guangcai,Wang Guangrui,Qu Zhi. Effective Control of Excitable Waves in 2D Cardiac Excitable Media[J]. Journal of biomedical engineering, 2005, 22(6): 1104-1107
Authors:Li Li  Liu Li  Zhang Guangcai  Wang Guangrui  Qu Zhi
Affiliation:1.Department of Biophysics, China Medical University, Shenyang 110001,China; 2.Institute of Applied Physics and Computational Mathematics, Beijing 100088,China
Abstract:
We propose a method for effective control of patter on dissipative system by use of little perturbation analysis,and apply this nonuniform feed back method to control the polarization wave of heart represented by FHN equation.In the numerical experiment,we successfully alter the propagating direction of planar waves and drift the spiral waves to boundary without resonant repulsion.The effective control of the excited system will be used to study the mechanism of defibrillation and that is our interesting work.
Keywords:FHN equation Effective control Rotation control Drifting control
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