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RESEARCH PAPERS

Wall Shear Stress Estimates in Coronary Artery Constrictions

[+] Author and Article Information
L. H. Back

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109

D. W. Crawford

Department of Medicine, Cardiology Division, University of Southern California, Los Angeles, CA 90033

J Biomech Eng 114(4), 515-520 (Nov 01, 1992) (6 pages) doi:10.1115/1.2894104 History: Received September 08, 1991; Revised December 16, 1991; Online March 17, 2008

Abstract

Wall shear stress estimates from laminar boundary layer theory were found to agree fairly well with the magnitude of shear stress levels along coronary artery constrictions obtained from solutions of the Navier Stokes equations for both steady and pulsatile flow. The relatively simple method can be used for in vivo estimates of wall shear stress in constrictions by using a vessel shape function determined from a coronary angiogram, along with a knowledge of the flow rate.

Copyright © 1992 by The American Society of Mechanical Engineers
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