| Using PIV to determine relative pressures in a stenotic phantom under steady flow based on the Pressure-Poisson equation. | |
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MedLine Citation:
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PMID: 21096448 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Pressure gradient across a Gaussian-shaped 87% area stenosis phantom was estimated by solving the pressure Poisson equation (PPE) for a steady flow mimicking the blood flow through the human iliac artery. The velocity field needed to solve the pressure equation was obtained using particle image velocimetry (PIV). A steady flow rate of 46.9 ml/s was used, which corresponds to a Reynolds number of 188 and 595 at the inlet and stenosis throat, respectively (in the range of mean Reynolds number encountered in-vivo). In addition, computational fluid dynamics (CFD) simulation of the same flow was performed. Pressure drops across the stenosis predicted by PPE/PIV and CFD were compared with those measured by a pressure catheter transducer. RMS errors relative to the measurements were 17% and 10% for PPE/PIV and CFD, respectively. |
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Authors:
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Iman Khodarahmi; Mostafa Shakeri; M Sharp; Amir A Amini |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference Volume: 1 ISSN: 1557-170X ISO Abbreviation: Conf Proc IEEE Eng Med Biol Soc Publication Date: 2010 |
Date Detail:
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Created Date: 2010-11-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101243413 Medline TA: Conf Proc IEEE Eng Med Biol Soc Country: United States |
Other Details:
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Languages: eng Pagination: 2594-7 Citation Subset: IM |
Affiliation:
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Medical Imaging Lab., Department of Electrical and Computer Engineering, University of Louisville, KY 40292 USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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