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Title: Flow characteristics in narrowed coronary bypass graft

Abstract

Tortuous saphenous vein graft (SVG) hemodynamics was investigated using computational fluid dynamics (CFD) techniques. Computed tomography (CT) technology is used for non-invasive bypass graft assessment 7 days after surgery. CT investigation shown two regions with severe shape remodelling first is an elbow type contortion and second is a severe curvature with tortuous area reduction. In conclusion, the helical flow induced by vessel torsion may stabilize the blood flow in the distal part of the SVG, reducing the flow disturbance and suppressing the flow separation, but in the distal end of the graft, promote the inflammatory processes in the vessels.

Authors:
 [1]; ;  [2]; ;  [3]
  1. Romanian Academy – Timisoara Branch, Mihai Viteazul Str. 24, RO-300223, Timisoara (Romania)
  2. University Politehnica of Timisoara, Department of Hydraulic Machinery, Mihai Viteazul Str. 1, RO-300222, Timisoara (Romania)
  3. University of Medicine and Pharmacy Victor Babes Timisoara, P-ta Eftimie Murgu, 2, Timisoara (Romania)
Publication Date:
OSTI Identifier:
22608935
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1738; Journal Issue: 1; Conference: ICNAAM 2015: International conference of numerical analysis and applied mathematics 2015, Rhodes (Greece), 22-28 Sep 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; BLOOD; BLOOD FLOW; BYPASSES; COMPUTERIZED SIMULATION; COMPUTERIZED TOMOGRAPHY; CONTAINERS; CORONARIES; DISTURBANCES; FLUID MECHANICS; FLUIDS; GRAFTS; REDUCTION; SURGERY; TORSION; VEINS

Citation Formats

Bernad, S. I., Bosioc, A., Totorean, A. F., Bernad, E. S., and Petre, I. Flow characteristics in narrowed coronary bypass graft. United States: N. p., 2016. Web. doi:10.1063/1.4951781.
Bernad, S. I., Bosioc, A., Totorean, A. F., Bernad, E. S., & Petre, I. Flow characteristics in narrowed coronary bypass graft. United States. doi:10.1063/1.4951781.
Bernad, S. I., Bosioc, A., Totorean, A. F., Bernad, E. S., and Petre, I. Wed . "Flow characteristics in narrowed coronary bypass graft". United States. doi:10.1063/1.4951781.
@article{osti_22608935,
title = {Flow characteristics in narrowed coronary bypass graft},
author = {Bernad, S. I. and Bosioc, A. and Totorean, A. F. and Bernad, E. S. and Petre, I.},
abstractNote = {Tortuous saphenous vein graft (SVG) hemodynamics was investigated using computational fluid dynamics (CFD) techniques. Computed tomography (CT) technology is used for non-invasive bypass graft assessment 7 days after surgery. CT investigation shown two regions with severe shape remodelling first is an elbow type contortion and second is a severe curvature with tortuous area reduction. In conclusion, the helical flow induced by vessel torsion may stabilize the blood flow in the distal part of the SVG, reducing the flow disturbance and suppressing the flow separation, but in the distal end of the graft, promote the inflammatory processes in the vessels.},
doi = {10.1063/1.4951781},
journal = {AIP Conference Proceedings},
number = 1,
volume = 1738,
place = {United States},
year = {Wed Jun 08 00:00:00 EDT 2016},
month = {Wed Jun 08 00:00:00 EDT 2016}
}