A linear empirical model of wave propagation in arteries

An original empirical model of wave propagation in arteries, based on the transmission line theory, is proposed. The aim is to represent in vivo wave transmission while avoiding the main limitations of classic models derived from linearization of the Navier-Stokes equations. Original expressions for both the longitudinal impedance and transverse admittance per unit length are presented. These expressions make use of five unknown parameters, whose values are chosen in the present work to simulate experimental results by W.R. Milnor and W.W. Nichols (1975) on the dog´s femoral artery. Plots of attenuation per unit length, phase velocity, modulus and phase of characteristic impedance obtained with the present expressions are shown and discussed.<>