Finkelstein S M, Cohn J N
Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis 55455.
J Hypertens Suppl. 1992 Aug;10(6):S11-4.
Engineering models of the arterial vasculature have been used to describe vascular properties of resistance and compliance. These approaches have used either Fourier frequency analysis, based on transmission line equations, or time domain analysis of the circuit equations describing modified Windkessel models of the vasculature.
A third-order, four-element modified Windkessel model can reproduce arterial pressure waveforms, including both exponential and oscillatory pressure decays observed during the diastolic portion of the cardiac cycle.
A method to determine both capacitive and oscillatory compliance of the arterial vasculature was developed, and the effect of these compliance properties on the blood pressure waveform was examined.
动脉血管系统的工程模型已被用于描述血管的阻力和顺应性特性。这些方法要么基于传输线方程进行傅里叶频率分析,要么对描述血管系统修正Windkessel模型的电路方程进行时域分析。
一个三阶四元件修正Windkessel模型能够再现动脉压力波形,包括在心动周期舒张期观察到的指数型和振荡型压力衰减。
开发了一种确定动脉血管系统电容性顺应性和振荡性顺应性的方法,并研究了这些顺应性特性对血压波形的影响。