Physiological correlates of impedance plethysmographic waveform.
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Date
1990-04-01
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Abstract
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.
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43 references.
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Citation
Dharani JB, Jindal GD, Tahilkar KI, Deshpande AK, Parulkar GB. Physiological correlates of impedance plethysmographic waveform. Journal of Postgraduate Medicine. 1990 Apr; 36(2): 71-9