Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-5-1
pubmed:abstractText
Near-simultaneous measurements of electrical and mechanical activation over the entire ventricular surface are now possible using magnetic resonance imaging tagging and a multielectrode epicardial sock. This new electromechanical mapping technique is demonstrated in the ventricularly paced canine heart. A 128-electrode epicardial sock and pacing electrodes were placed on the hearts of four anesthetized dogs. In the magnetic resonance scanner, tagged cine images (8-15 ms/frame) and sock electrode recordings (1000 Hz) were acquired under right-ventricular pacing and temporally referenced to the pacing stimulus. Electrical recordings were obtained during intermittent breaks in image acquisition, so that both data sets represented the same physiologic state. Since the electrodes were not visible in the images, electrode recordings and cine images were spatially registered with Gd-DTPA markers attached to the sock. Circumferential strain was calculated at locations corresponding to electrodes. For each electrode location, electrical and mechanical activation times were calculated and relationships between the two activation patterns were demonstrated. This method holds promise for improving understanding of the relationships between the patterns of electrical activation and contraction in the heart.
pubmed:grant
pubmed:commentsCorrections
http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-10070071, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-10096932, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-10334450, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-10870714, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-10870718, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-11120694, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-11141200, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-11204089, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-11259720, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-11870847, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1415608, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1461130, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1539694, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1554540, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1600995, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1690401, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-16993269, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1775376, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-1959201, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-2436166, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-2917378, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-318576, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-3740295, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-4053304, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-7386645, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-7754016, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-8423166, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-8430847, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-8488095, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-9396415, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-9475573, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-9543411, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-9683920, http://linkedlifedata.com/resource/pubmed/commentcorrection/12723684-9857858
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0090-6964
pubmed:author
pubmed:issnType
Print
pubmed:volume
31
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
430-40
pubmed:dateRevised
2009-11-18
pubmed:meshHeading
pubmed-meshheading:12723684-Animals, pubmed-meshheading:12723684-Body Surface Potential Mapping, pubmed-meshheading:12723684-Cardiac Pacing, Artificial, pubmed-meshheading:12723684-Dogs, pubmed-meshheading:12723684-Elasticity, pubmed-meshheading:12723684-Electrocardiography, pubmed-meshheading:12723684-Electrodes, pubmed-meshheading:12723684-Equipment Design, pubmed-meshheading:12723684-Feasibility Studies, pubmed-meshheading:12723684-Heart Ventricles, pubmed-meshheading:12723684-Image Enhancement, pubmed-meshheading:12723684-Magnetic Resonance Imaging, Cine, pubmed-meshheading:12723684-Male, pubmed-meshheading:12723684-Movement, pubmed-meshheading:12723684-Pericardium, pubmed-meshheading:12723684-Stress, Mechanical, pubmed-meshheading:12723684-Subtraction Technique, pubmed-meshheading:12723684-Ventricular Function, pubmed-meshheading:12723684-Ventricular Function, Right
pubmed:year
2003
pubmed:articleTitle
Novel technique for cardiac electromechanical mapping with magnetic resonance imaging tagging and an epicardial electrode sock.
pubmed:affiliation
Laboratory of Cardiac Energetics, National Institutes of Health, NHLBI, 10 Center Drive, Room B1D416, Bethesda, MD 20892, USA. fariso@nih.gov
pubmed:publicationType
Journal Article, Evaluation Studies