WIT Press

Prediction Of Human Arterial Pulse Wave Shape Changes In Aging And Hypertension

Price

Free (open access)

Paper DOI

10.2495/BIO950161

Volume

2

Pages

8

Published

1995

Size

853 kb

Author(s)

S. Urquiza, H. Desimone, M. Goni, A. Introzzi & F. Clara

Abstract

A folly nonlinear model of arterial blood flow and pressure pulse propagation which can account for tapering, branching, variable thickness and nonlinear elastic properties of the arterial wall is presented. The model can accommodate different elastic modulus for Collagen and Elastin fibbers, with a recruitment function for the former. One dimensional momentum and continuity equations coupled with a pressure-area relationship yields a system of nonlinear hyperbolic partial differential equations. The system is reduced to the canonic form and solved by a "Hartree" like Finite Difference Method over the characteristics. A complete model of the human arterial system is implemented, giving geometrical and physical data for the major vessels and, appropriate inlet and o

Keywords