Intra-Aneurysmal Flow With Helix and Mesh Stent Placement Across Side-Wall Aneurysm Pore of a Straight Parent Vessel

[+] Author and Article Information
Tong-Miin Liou, Shun-Nan Liou, Kai-Lung Chu

Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan 30013, Republic of China

J Biomech Eng 126(1), 36-43 (Mar 09, 2004) (8 pages) doi:10.1115/1.1644566 History: Received December 03, 2002; Revised June 28, 2003; Online March 09, 2004
Copyright © 2004 by ASME
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Sketch of configuration, coordinate system, and dimensions of the side-wall aneurysm model
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Sketch of configuration, coordinate system, and dimensions of the helix and mesh stents
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Schematic drawing of overall experimental system
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Intra-aneurysmal instantaneous velocity vector fields in Y*=0 plane for straight parent vessel with helix stent placement at four consecutive phases. (Flow in parent vessel is from left to right.)
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Instantaneous velocity vector field inside the aneurysm in Y*=0 plane for straight parent vessel without stent placement at peak flow rate phase 12
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Coded streak images in the symmetry plane Y*=0 during (a) minimal, (b) systolic, (c) peak, and (d) diastolic phase with helix stent placement for Re=600,α=3.9, and Cα=30%. (Flow in parent vessel is from left to right.)
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Intra-aneurysmal instantaneous velocity vector fields in Y*=0 plane for straight parent vessel with mesh stent placement at four consecutive phases. (Flow in afferent vessel is from left to right.)
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Variation of Ua with four consecutive phases for non-stented (Ua)NS and stented (Ua)S cases
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Distribution of vorticity contour maps at diastolic phase
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Variation of the circulation with four consecutive phases for non-, helix- and mesh-stented cases
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Wall shear stress along intra-aneurysmal wall at the peak flow rate phase before and after stenting



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