| Estimation of central aortic forces in the ballistocardiogram under rest and exercise conditions. | |
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MedLine Citation:
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PMID: 19964271 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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The ballistocardiogram (BCG) signal represents the movements of the body in response to cardiac ejection of blood. The BCG signal can change considerably under various physiological states; however, little information exists in literature describing how these forces are generated. A physical analysis is presented using a finite element model of thoracic aortic vasculature to quantify forces generated by the blood flow during the cardiac cycle. The traction at the fluid-solid interface of this deformable wall model generates a Central Aortic Force (CAF) which appears of similar magnitude to recorded BCG forces. The increased pulse pressure in an exercise simulation caused a significant increase in CAF, which is consistent with recent BCG measurements in exercise recovery. |
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Authors:
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Richard M Wiard; Hyun Jin Kim; C Figueroa; Gregory T A Kovacs; Charles A Taylor; Laurent Giovangrandi |
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: 2009 |
Date Detail:
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Created Date: 2009-12-07 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: 2831-4 Citation Subset: IM |
Affiliation:
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Bioengineering Department, Stanford University, Stanford, CA 94305 USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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