Title :
An experimental study of wave propagation in the latex rubber tube [arterial tree model]
Author :
Gallerani, M. ; Ursino, M. ; Artioli, E.
Author_Institution :
Dept. of Electron., Inf. & Syst. Sci., Bologna Univ., Italy
Abstract :
Experimental results on wave propagation in the latex rubber tube are presented. According to the transmission line theory, wave propagation is described with the complex quantity `propagation coefficient´. Values of this quantity have been obtained starting from three simultaneous pressure measurements, performed at equidistant points. In order to test the effect of nonlinearities on propagation phenomena, two kinds of pressure signal have been examined: small-amplitude sinusoidal waves and large-amplitude (both periodic and aperiodic) impulses. The results support the hypothesis that nonlinearities play a relevant role in the propagation of sphygmic waves along the arterial tree
Keywords :
haemodynamics; arterial tree; equidistant points; large amplitude pulses; latex rubber tube; nonlinearities; pressure signal; simultaneous pressure measurements; small-amplitude sinusoidal waves; sphygmic waves; transmission line theory; wave propagation; Attenuation; Blood vessels; Electron tubes; Fourier transforms; Mathematical model; Navier-Stokes equations; Pressure measurement; Rubber; Transmission line measurements; Transmission line theory;
Conference_Titel :
Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in
Conference_Location :
Seattle, WA
DOI :
10.1109/IEMBS.1989.96025
