3580483

Source:http://linkedlifedata.com/resource/pubmed/id/3580483

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0035647, umls-concept:C0205125, umls-concept:C0392747, umls-concept:C0596790, umls-concept:C1272575
pubmed:issue	4
pubmed:dateCreated	1987-7-10
pubmed:abstractText	The electrical source strength for an isolated, active, excitable fiber can be taken to be its transmembrane current as an excellent approximation. The transmembrane current can be determined from intracellular potentials only. But for multicellular preparations, particularly cardiac ventricular muscle, the electrical source strength may be changed significantly by the presence of the interstitial potential field. This report examines the size of the interstitial potential field as a function of depth into a semi-infinite tissue structure of cardiac muscle regarded as syncytial. A uniform propagating plane wave of excitation is assumed and the interstitial potential field is found based on consideration of the medium as a continuum (bidomain model). As a whole, the results are inconsistent with any of the limiting cases normally used to represent the volume conductor, and suggest that in only the thinnest of tissue (less than 200 micron) can the interstitial potentials be ignored.
pubmed:grant	http://linkedlifedata.com/resource/pubmed/grant/HL-11307
pubmed:commentsCorrections	http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-1149199, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-1255523, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-3719925, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-3957401, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-445703, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-4461667, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-4842391, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-5415978, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-6547622, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-6713068, http://linkedlifedata.com/resource/pubmed/commentcorrection/3580483-7139879
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/0370626
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:month	Apr
pubmed:issn	0006-3495
pubmed:author	pubmed-author:BarrR CRC, pubmed-author:PlonseyRR
pubmed:issnType	Print
pubmed:volume	51
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	547-55
pubmed:dateRevised	2009-11-18
pubmed:meshHeading	pubmed-meshheading:3580483-Action Potentials, pubmed-meshheading:3580483-Animals, pubmed-meshheading:3580483-Electric Conductivity, pubmed-meshheading:3580483-Heart, pubmed-meshheading:3580483-Mathematics, pubmed-meshheading:3580483-Membrane Potentials, pubmed-meshheading:3580483-Models, Biological
pubmed:year	1987
pubmed:articleTitle	Interstitial potentials and their change with depth into cardiac tissue.
pubmed:publicationType	Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.