左心室舒张末期容积周期变化的非线性动力学模拟

许世雄; 毛晓春

左心室舒张末期容积周期变化的非线性动力学模拟

复旦大学力学与工程科学系上海 200433

详细信息

作者简介:
许世雄(1943- ),男,上海人,教授,博士生导师.

中图分类号: R318.01
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- 文章访问数: 2195
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- 被引次数: 0
出版历程
- 收稿日期: 2000-10-16
- 修回日期: 2001-05-08
- 刊出日期: 2001-10-15

Nonlinear Dynamics Modeling of Mechanical Periodicity of End Diastolic Volume of Left Ventricle

Mechanics and Engineering Science Department, Fudan University, Shanghai 200433, P R China

摘要

摘要: 采用集中参数模型模拟心血管系统,左心室采用Starling模型,动脉系统采用四元件Burattini & Gnudi模型,并考虑了动脉压对心动周期的反馈作用。求解了一维离散非线性动力学方程,成功模拟了左心室舒张末期容积(EDV)的MP(mechanical periodicity)周期现象,并讨论了心血管参数对MP的影响。
- 左心室 /
- 舒张末期容积 /
- 周期变化 /
- 非线性动力学
Abstract: The cardiovascular system with a lumped parameter model is treated,in which the Starling model is used to simulate left ventricle and the four-element Burattini & Gnudi model is used in the description of arterial system.Moreover,the feedback action of arterial pressure on cardiac cycle is taken into account.The phenomenon of mechanical periodicity (MP) of end diastolic volume (EDV) of left ventricle is successfully simulated by solving a series of one-dimensional discrete nonlinear dynamical equations.The effects of cardiovascular parameters on MP is also discussed.
- left ventricle /
- end diastolic volume /
- mechanical periodicity /
- nonlinear dynamics

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参考文献(30)

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