Arterial segment

Abstract. In this paper, methods for a time delay evalu-ation of phonocardiographic (PCG) signals are presented to estimate a pulse wave velocity (PWV) in a cardiovascu-lar system of a human body, especially in arterial segments of an arterial tree selected. A measuring method used for the pulse wave registration is fully non-invasive. Electronic phonendoscopes – pressure/acoustic converters – were used as signal transducers. The PWV estimation was car-ried out using correlation analysis of PCG signals, square of raw PCG signals and the first derivations of PCG sig-nals. Signal processing, i.e. filtration, standardization, etc. was implemented in a Matlab environment using created application. A set of subjects examined in this experiment consists of five young healthy volunteers. t1 t2 Tim