Flow and wall shear stress in end-to-side and side-to-side anastomosis of venous coronary artery bypass grafts |
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Authors: | Thomas Frauenfelder Evangelos Boutsianis Thomas Schertler Lars Husmann Sebastian Leschka Dimos Poulikakos Borut Marincek Hatem Alkadhi |
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Affiliation: | (1) Institute of Diagnostic Radiology, University Hospital Zurich, Zurich, Switzerland;(2) Laboratory of Thermodynamics in Emerging Technologies, ETH Zurich, Zurich, Switzerland |
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Abstract: | Purpose Coronary artery bypass graft (CABG) surgery represents the standard treatment of advanced coronary artery disease. Two major types of anastomosis exist to connect the graft to the coronary artery, i.e., by using an end-to-side or a side-to-side anastomosis. There is still controversy because of the differences in the patency rates of the two types of anastomosis. The purpose of this paper is to non-invasively quantify hemodynamic parameters, such as mass flow and wall shear stress (WSS), in end-to-side and side-to-side anastomoses of patients with CABG using computational fluid dynamics (CFD). |
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