Examination of impedance cardiography properties--FEM model studies.
A FEM has been used to examine influence of tissues' conductivities and electrodes' array configurations on the results obtained by Impedance Cardiography. A Geselowitz's relationship has been applied to estimate partial contributions from each region of thorax. The obtained results have indicated the strong dependence of ICG signal on factors mentioned above. It seems that additional measurements and more advanced ICG waveform processing must be done to minimise errors in estimating parameters of mechanical work of heart by means of ICG.
Wtorek
J
J
Electronics Faculty, Department of Medical and Ecological Electronics, Technical University of Gdańsk, Poland.
Poliński
A
A
D002307:Cardiography, Impedance / Q000706:statistics & numerical data; D004553:Electric Conductivity; D006801:Humans; D008955:Models, Cardiovascular; D015233:Models, Statistical; D013318:Stroke Volume / Q000502:physiology