A new formula for predicting the position of severe arterial stenosis

Khaled Ben Abdessalem and Ridha Ben Saleh

Computer Methods in Biomechanics and Biomedical Engineering, 2017, vol. 20, issue 10, 1096-1103

Abstract: Noninvasive location of an occlusion or a severe stenosis in the arterial system is of a great interest for surgical interventions. Here, we present a new method to determine the location of arterial 99% stenosis in the arterial (sub) system. The method requires a measurement of propagation constant and the instantaneous flow rate or velocity at two sites of an arterial tree. The method was successfully tested using Womersley’s oscillatory flow theory and the data obtained by a simulation of Fluid structure interaction (FSI). The effect of noise has been investigated to simulate experimental conditions. The results demonstrate that location of 99% severe stenosis could be accurately obtained. The spatial resolution was approximately a few centimeters and the differences between exact and computed values didn’t exceed 13%. However, the identifications of stenotic sites decreased with the distance. Further investigation of the developed method in vivo and in vitro is required.

Date: 2017
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DOI: 10.1080/10255842.2017.1334769

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