| Doppler color-flow images from a stenosed arterial model: interpretation of flow patterns. | |
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MedLine Citation:
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PMID: 2231961 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The capability of the recently introduced Doppler color-flow mapping devices to accurately detect flow patterns in the region of an arterial stenosis was evaluated by use of an in vitro flow model. Pulsatile flow simulating that in a low-resistance vessel was induced through a straight acrylic tube, which alternatively contained axisymmetric stenoses of 0%, 20%, 40%, 60%, and 80% diameter reduction. Doppler color-flow mapper images were taken in realtime along the tube midplane from 0 to 8 diameters downstream of each stenosis. Comparison of the Doppler color-flow mapping results with similarly recorded flow visualization (hydrogen bubble) images showed a close correspondence of key features of the flow, including detection of a high-velocity, centerline jet and near-wall separated flow zones. Distinctive flow patterns exist with each stenotic case, and these should be of considerable value in diagnosing clinical disease conditions. |
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Authors:
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S E Rittgers; M C Shu |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of vascular surgery : official publication, the Society for Vascular Surgery [and] International Society for Cardiovascular Surgery, North American Chapter Volume: 12 ISSN: 0741-5214 ISO Abbreviation: J. Vasc. Surg. Publication Date: 1990 Nov |
Date Detail:
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Created Date: 1990-12-20 Completed Date: 1990-12-20 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8407742 Medline TA: J Vasc Surg Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 511-22 Citation Subset: IM |
Affiliation:
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Department of Biomedical Engineering, University of Akron, OH 44325. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Arterial Occlusive Diseases
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pathology,
physiopathology,
ultrasonography* Arteries / pathology, physiopathology, ultrasonography Blood Flow Velocity Humans Models, Structural* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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