动脉输入阻抗与三元件Windkessel串联电阻之间的解析关系。
Analytical relationship between arterial input impedance and the three-element Windkessel series resistance.
作者信息
Gnudi G
机构信息
Department of Electronics, Informatics & Systems (DEIS), University of Bologna, Italy.
出版信息
Med Biol Eng Comput. 1998 Jul;36(4):480-4. doi: 10.1007/BF02523218.
PMID:10198533
Abstract
The recently proposed energy-balance method for estimating the series resistance of the three-element Windkessel model is reformulated in the frequency domain. New mathematical expressions are analytically derived, involving Fourier harmonics of pulsatile arterial pressure and flow. It is shown that the series resistance of the arterial three-element Windkessel model can be expressed as a weighted sum of the arterial input impedance moduli.
摘要
最近提出的用于估计三元件Windkessel模型串联电阻的能量平衡方法在频域中被重新表述。通过分析推导得出了新的数学表达式，其中涉及脉动动脉压和血流的傅里叶谐波。结果表明，动脉三元件Windkessel模型的串联电阻可以表示为动脉输入阻抗模量的加权和。
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