螺旋对源的动力学及其与平面波的相互作用。

Dynamics of a spiral pair source and its interaction with plane waves.

作者信息

Rabinovitch A, Biton Y, Gutman M, Aviram I

机构信息

Physics Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.

出版信息

Comput Biol Med. 2009 May;39(5):405-11. doi: 10.1016/j.compbiomed.2009.01.015. Epub 2009 Mar 19.

DOI:10.1016/j.compbiomed.2009.01.015

PMID:19303070

Abstract

Spiral pair creation and dynamics is a widely occurring phenomenon in nature. It can appear in the heart tissue, causing severe arrhythmia, known as a figure-eight reentry. We consider the appearance of a spiral pair source, its minimal strength for survival, and the possible results of its interaction with a plane wave. In particular, its ability to outlast such an encounter is of interest. We also consider the question of exposing the source to a train of pulses, in terms of the frequency and angle of encounter. Results show different regimes of behavior, e.g. source annihilation, motion of the source away from, or towards the origin of the plane waves, its breaking and multiplication. Relevance of these results to heart arrhythmia and their possible cancellation by external pacing are briefly discussed.

摘要

螺旋对的产生与动力学是自然界中广泛存在的一种现象。它可能出现在心脏组织中，引发严重的心律失常，即所谓的8字形折返。我们研究螺旋对源的出现、其存活所需的最小强度，以及它与平面波相互作用可能产生的结果。特别值得关注的是，它在这种相遇后持续存在的能力。我们还从相遇的频率和角度方面考虑了将源暴露于一系列脉冲的问题。结果显示了不同的行为模式，例如源的湮灭、源远离或朝向平面波源的运动、其破裂和增殖。简要讨论了这些结果与心脏心律失常的相关性以及通过外部起搏可能消除心律失常的情况。