Physiological Flow Simulation in Residual Human Stenoses After Coronary Angioplasty

[+] Author and Article Information
Rupak K. Banerjee

Bioengineering and Physical Science Program, Bldg. 13, Rm. 3N17, National Institute of Health (NIH), Bethesda, MD 20892

Lloyd H. Back

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

Martin R. Back

Division of Vascular Surgery, University of South Florida, College of Medicine, Tampa, FL 33606

Young I. Cho

Mechanical Engineering and Mechanics Department, Drexel University, Philadelphia, PA 19104

J Biomech Eng 122(4), 310-320 (Mar 20, 2000) (11 pages) doi:10.1115/1.1287157 History: Received March 23, 1999; Revised March 20, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Stenoses configuration with dimensions and finite element mesh
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Coronary flow waveform ū/ūp−t versus t
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Velocity profiles at some locations along the stenosis at various times during the cardiac cycle (for Q̃=50, 100, and 150 ml/min)
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Arterial wall shear stress τw distributions along the stenosis for the reference steady flow calculations at Q=50, 100, 150, and 200 ml/min
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Arterial wall shear stress τw distributions along the stenosis at various times during the cardiac cycle (for Q̃=50, 100, and 150 ml/min)
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Axial pressure drop p−pe along the stenosis for the reference steady flow calculations at Q=50, 100, 150, and 200 ml/min
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Axial pressure drop p−pe along the stenosis at various times during the cardiac cycle (for Q̃=50, 100, and 150 ml/min)
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Overall pressure drop Δp across the stenosis during the cardiac cycle (for Q̃=50, 100, and 150 ml/min)
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Phasic variation of the wall shear stress τwm at the midpoint of the throat region (for Q̃=50, 100, and 150 ml/min)
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Time (mean) pressure drop-flow rate relation, Δp̃−Q̃, for physiologic flow, other comparisons, and with the catheter present after angioplasty
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Normalized peak wall shear stress τwpwe variation with proximal Reynolds number Ree for steady flow
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Pressure drop coefficient c̃Δpe variation with proximal Reynolds number Ree for pulsatile and reference steady flow



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