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Relation of early post-stress left ventricular dyssynchrony and the extent of angiographic coronary artery disease.
MedLine Citation:
PMID:  25245950     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
BACKGROUND: Previous studies showed different dyssynchrony patterns between ischemic and normal myocardium at early post-stress using Tl-201 gated SPECT myocardial perfusion imaging (MPI). The aim of this study was to assess the relation of stress-induced dyssynchrony and the extent of angiographic coronary artery disease (CAD).
METHODS AND RESULTS: The MPI images of 144 patients were retrospectively analyzed. With ≥70% stenosis as the criteria of CAD, 57 had no CAD, 32 had 1-vessel disease, 36 had 2-vessel disease, and 19 had 3-vessel disease, respectively. LV global and territorial dyssynchrony parameters were measured by the phase analysis from stress/rest Tl-201 SPECT MPI and compared between stress and rest among the patient groups. The patients with multi-vessel CAD had significantly more global dyssynchrony than the patients without ≥70% stenosis at stress. The patients with multi-vessel CAD showed significantly more global and territorial dyssynchrony on stress images than on rest. More patients with 3-vessel CAD were correctly classified as multi-vessel disease, when combining both visual interpretation and dyssynchrony assessment.
CONCLUSION: The patients with multi-vessel CAD had significantly more global and territorial dyssynchrony at early post-stress than at rest. Such quantitative measures of myocardial stunning may assist in the diagnosis of multi-vessel CAD.
Authors:
Wen-Sheng Huang; Ching-Hui Huang; Cheng-Liang Lee; Ching-Pei Chen; Guang-Uei Hung; Ji Chen
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-9-23
Journal Detail:
Title:  Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology     Volume:  -     ISSN:  1532-6551     ISO Abbreviation:  J Nucl Cardiol     Publication Date:  2014 Sep 
Date Detail:
Created Date:  2014-9-23     Completed Date:  -     Revised Date:  2014-9-24    
Medline Journal Info:
Nlm Unique ID:  9423534     Medline TA:  J Nucl Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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