| The electrocardiographic inverse problem. | |
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MedLine Citation:
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PMID: 1424685 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Using the boundary element method in conjunction with Tikhonov zero-order regularization, we have computed epicardial potentials from body surface potential data in a realistic geometry heart-torso system. The inverse-reconstructed epicardial potentials were compared to the actual measured potentials throughout a normal cardiac cycle. Potential features (maxima, minima) were recovered with an accuracy better than 1 cm in their location. In this chapter, we use these data to illustrate and discuss computational issues related to the inverse-reconstruction procedure. These include the boundary element method, the choice of a regularization scheme to stabilize the inversion, and the effects of incorporating a priori information on the accuracy of the solution. In particular, emphasis is on the use of temporal information in the regularization procedure. The sensitivity of the solution to geometrical errors and to the spatial and temporal resolution of the data is discussed. |
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Authors:
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Y Rudy; H S Oster |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.; Review |
Journal Detail:
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Title: Critical reviews in biomedical engineering Volume: 20 ISSN: 0278-940X ISO Abbreviation: Crit Rev Biomed Eng Publication Date: 1992 |
Date Detail:
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Created Date: 1992-12-01 Completed Date: 1992-12-01 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8208627 Medline TA: Crit Rev Biomed Eng Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 25-45 Citation Subset: IM |
Affiliation:
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Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Child Dogs Electrocardiography* Humans Male Models, Cardiovascular* |
| Grant Support | |
ID/Acronym/Agency:
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HL-33343/HL/NHLBI NIH HHS; P41 RR06009-01/RR/NCRR NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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