Dharani J B, Jindal G D, Tahilkar K I, Deshpande A K, Parulkar G B
Dept. of Physiology, Seth G. S. Medical College, Bombay, Maharashtra.
J Postgrad Med. 1990 Apr;36(2):71-9.
A review of investigations into the origin of impedance plethysmographic waveform is presented in this article. Attempts made by several investigators in the comparison of impedance plethysmographic estimations of peripheral blood flow with that obtained by standard methods are briefly described. Investigations indicating the negligible contribution from contact impedance at body electrode interface are highlighted. Temporal correlation of impedance plethysmographic waveform recorded from thorax with various important events of the cardiac cycle is summarised and various hypotheses on the genesis of this waveform are presented.
本文对阻抗体积描记波形的起源研究进行了综述。简要描述了几位研究者在比较阻抗体积描记法对外周血流的估计值与标准方法所获得的值时所做的尝试。强调了表明身体电极界面处接触阻抗贡献可忽略不计的研究。总结了从胸部记录的阻抗体积描记波形与心动周期各种重要事件的时间相关性，并提出了关于该波形产生的各种假说。
