Flow characteristics in narrowed coronary bypass graft

Journal Article · Wed Jun 08 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4951781· OSTI ID:22608935

Bernad, S. I. ^[1]; Bosioc, A.; Totorean, A. F. ^[2]; Bernad, E. S.; Petre, I. ^[3]

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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)

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.

• OSTI ID: 22608935
• Journal Information: AIP Conference Proceedings, Vol. 1738, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
BLOOD
BLOOD FLOW
BYPASSES
COMPUTERIZED SIMULATION
COMPUTERIZED TOMOGRAPHY
CONTAINERS
CORONARIES
DISTURBANCES
FLUID MECHANICS
FLUIDS
GRAFTS
REDUCTION
SURGERY
TORSION
VEINS