| Hemodynamic simulation in a novel design for femoral bypass grafts. | |
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MedLine Citation:
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PMID: 17538202 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The effectiveness of femoral bypass grafts is correlated with the geometric configuration and hemodynamics of the bypass and the arteries. As an attempt to develop a new design for femoral bypass grafts, we present a novel geometric configuration for a symmetrically implanted 2-way bypass graft. In order to investigate how the symmetric 2-way bypass grafts affect the flow patterns through the anastomosis, physiologic blood flows in 1-way and 2-way models for a fully stenosed femoral bypass were simulated with the finite element method, and the hemodynamic factors in these models were studied. The temporal and spatial distributions of flow patterns and wall shear stresses in the vicinity of distal anastomosis during the cardiac cycle were analyzed. The results computed showed that the 2-way model has more preferable hemodynamics than the 1-way model in the distribution of flow patterns and wall shear stresses, and it may improve the flow conditions and decrease the probability of restenosis. However, the limitations of the 2-way bypass model may counteract the positive effects. More detailed hemodynamic studies are necessary to fully assess the viability of the 2-way bypass graft. |
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Authors:
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Aike Qiao; Teruo Matsuzawa |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Biorheology Volume: 44 ISSN: 0006-355X ISO Abbreviation: Biorheology Publication Date: 2007 |
Date Detail:
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Created Date: 2007-05-31 Completed Date: 2007-12-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0372526 Medline TA: Biorheology Country: Netherlands |
Other Details:
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Languages: eng Pagination: 103-24 Citation Subset: IM |
Affiliation:
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Center for Information Science, Japan Advanced Institute of Science and Technology, Japan. qak@bjut.edu.cn |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anastomosis, Surgical
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methods Femoral Artery / surgery* Finite Element Analysis* Humans Leg / blood supply*, surgery Models, Biological Regional Blood Flow / physiology Vascular Surgical Procedures / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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