The ventricular-arterial coupling system can be analyzed by the eigenwave modes of the whole arterial system
The ventricular-arterial coupling system can be analyzed by the eigenwave modes of the whole arterial system
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DOI：
10.1063/1.2911746
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发表时间：
2008-04-14
影响因子：
4
通讯作者：
Wang, Wei-Kung
中科院分区：
文献类型：
--
作者：
Wang, Yuh-Ying Lin;Sze, Wah-Keung;Wang, Wei-Kung
响应心脏产生的谐波力，动脉系统执行强耦合的分布式振荡运动。这些振荡由一个压力 - 面积波动方程描述，在适当的施图姆 - 刘维尔边界条件下该方程可解。响应压力可表示为驻波之和，这些驻波是整个动脉系统的本征模式。系统的固有频率与特征值和相速度有关。这些固有频率与心率或其谐波的匹配在心室 - 动脉耦合中很重要。压力的传递函数可由相应的本征函数构建。（C）2008美国物理学会。
In response to harmonic forces generated by the heart, the arterial system executes strong coupled distributed oscillatory motions. These oscillations are described by a pressure-area wave equation, which is solvable subject to appropriate Sturm-Liouville boundary conditions. The response pressure can be represented as a sum of stationary waves which are the eigenmodes of the whole arterial system. Natural frequencies of the system are related to the eigenvalues and the phase velocity. Matching of these natural frequencies with heart rate or its harmonics is important in ventricular-arterial coupling. Transfer functions for the pressure can be constructed from the corresponding eigenfunctions. (C) 2008 American Institute of Physics.