Computer supported analysis of cardiovascular parameters by impedance cardiography and plethysmography.

Abstract

A fully automated system for computer supported analysis of cardiovascular parameters on the basis of impedance technique, which is confined to the analysis of relative changes of stroke volume and cardiac output, has been developed and tested. The evaluation showed good agreement between automatic and manual calculation. As the whole computational procedure is done by software, which is written in a common language (BASIC), a maximum of flexibility and portability is guaranteed. Estimation of relative changes of stroke volume and cardiac output as well as peripheral blood flow is possible without any manual interaction. Extension from physiological measurement of healthy individuals to clinical application has been started.