Noninvasive Method for Measurement of the Circulatory Parameters by Analysing Radial Pulse Waveform Based on the Electric Circuit Arterial Model

Abstract

It has been speculated that the circulatory system is equivalent to the electric circuit (four-factor concentrated constant circuit modol). A noninvasive simple method for measurement of the circulatory parameters by analysing the radial pulse waveform based on the arterial model has been developped. A new approximate method calculates the parameters of the four-factor concentrated constant circuit model from the radial pulse waveform and the stroke volume. The radial pulse waveform was picked up by tonometry sphyngomanometer and stroke volume was obtained by another device (Korotkov sound recorder). The calculated circulatory parameters by the new method before and after sympathetic beta-blockade corresponded well with the supposed changes of the parameters.