Document Detail


Mechanism for polarisation of cardiac tissue at a sealed boundary.
MedLine Citation:
PMID:  10696712     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
If current is flowing in cardiac tissue, and if the myocardial fibres approach a sealed boundary at an angle, then the tissue within a few length constants of the boundary is polarised. This polarisation occurs when the cardiac tissue has different anisotropy ratios in the intracellular and extracellular spaces. This new mechanism of tissue polarisation is demonstrated using a simple, analytical model, and it is shown quantitatively that this polarisation can be nearly as large as that occurring near an electrode.
Authors:
B J Roth
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Medical & biological engineering & computing     Volume:  37     ISSN:  0140-0118     ISO Abbreviation:  Med Biol Eng Comput     Publication Date:  1999 Jul 
Date Detail:
Created Date:  2000-03-16     Completed Date:  2000-03-16     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7704869     Medline TA:  Med Biol Eng Comput     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  523-5     Citation Subset:  IM    
Affiliation:
Department of Physics, Oakland University, Rochester, MI 48309, USA. roth@oakland.edu
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MeSH Terms
Descriptor/Qualifier:
Anisotropy
Electric Conductivity
Heart / physiology*
Humans
Models, Cardiovascular*
Grant Support
ID/Acronym/Agency:
R29HL57207/HL/NHLBI NIH HHS

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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