| Computer-optimization of vascular trees. | |
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MedLine Citation:
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PMID: 8225337 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Arterial branchings closely fulfill several "bifurcation rules" which are deemed to optimize blood flow. The question is whether these local criteria in conjunction with a general optimization principle can explain the overall structure of an arterial tree. We present a model of an arterial vascular tree which is grown on the computer by successively adding terminal vessel segments. Each new terminal segment is connected to the optimum site within the preexisting tree, and the new bifurcation is optimized geometrically. After each step of adding and optimizing, the whole tree is rescaled to meet invariant boundary conditions of pressure and flow at each terminal site. Thus, local geometric optimization is used to induce simultaneously an optimized global structure. The comparison between the model and real coronary arterial trees shows good agreement regarding structural appearance, morphometric parameters, and pressure profiles. |
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Authors:
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W Schreiner; P F Buxbaum |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: IEEE transactions on bio-medical engineering Volume: 40 ISSN: 0018-9294 ISO Abbreviation: IEEE Trans Biomed Eng Publication Date: 1993 May |
Date Detail:
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Created Date: 1993-12-09 Completed Date: 1993-12-09 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0012737 Medline TA: IEEE Trans Biomed Eng Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 482-91 Citation Subset: IM |
Affiliation:
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2nd Department of Surgery, University of Vienna, Wien, Austria. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Arteries
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anatomy & histology*,
physiology Blood Flow Velocity Blood Pressure Computer Simulation* Coronary Vessels / anatomy & histology, physiology Evaluation Studies as Topic Humans Mathematics Models, Cardiovascular* Vascular Resistance |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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