Electrophysiologic Principles and Theory of Stroke Volume Determination by Thoracic Electrical Bioimpedance

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Abstract

Thoracic electrical bioimpedance (TEB) is a harmless, noninvasive, user-friendly technology with wide patient acceptance. Stroke volume (SV) determination is important because it helps to define oxygen transport. Measurement of SV by TEB la rooted in concrete, basic electrical theory, as well as in theoretical models of electrical behavior of the human thorax and great thoracic vessels. This article is concerned with basic electrical theory as applied lo TEB, signal acquisition, and the origin of the thoracic cardiogenie impedance pulse (Z).The appendix or the chapter features a more extensive overview of alternating current theory as applied to electrical bioimpedance.

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