Author(s)

L.R. John & W.L. Capper

Abstract

An inverse transmission line model of the lower limb arterial system L.R. John, W.L. Capper Department of Biomedical Engineering, University of Cape Town Medical School, Anzio Road, Observatory 7925, South Africa ABSTRACT By using a globally convergent modification on Newton's Method for solving multiple nonlinear equations, an inverse electrical transmission line model of the lower limb arterial system has been developed. The performance of this model was tested under computer simulated conditions of proximal,distal and aortic stenosis, and input waveform phase and amplitude distortion. Methods of improving accuracy are also discussed. INTRODUCTION An inverse electrical transmission line model has been developed which estimates the degree of arterial disease (stenosis) given the blood flow rate waveform . A nine segment forward arterial model (L.R. John et al [3]) (fig 1) which generates the flow rate waveform given the state of arterial disease is used as an input to the inve

Keywords