Document Detail

The diagnostic value of exercise echocardiography in ischemic heart disease in relation to quantitative coronary arteriography.
MedLine Citation:
PMID:  7730677     Owner:  NLM     Status:  MEDLINE    
The aim of the study was to assess the diagnostic value of bicycle exercise echocardiography using quantitative coronary arteriography as a reference. Exercise echocardiography was performed in 70 consecutive patients referred for coronary angiography. Digital loops were obtained at rest, peak, and immediately after exercise in the standard views (parasternal long and short axis, apical two and four chamber views). Wall motion analysis was made on the basis of the 16 segment model, scoring each segment from 3 (hyperkinesia) to -1 (hypokinesia). Exercise echocardiography was considered positive when wall motion in at least one segment decreased at least one score from rest to peak or post exercise. Cinefilms were evaluated using automated quantitative coronary arteriography software. Transstenotic pressure gradients were calculated based on flow assumptions at the maximal stenosis flow reserve. Pressure losses > 30 mmHg and quantitatively measured percent diameter stenosis of > 50% were considered clinically significant. Stenoses in the equivocal range of 40-69% were subjected to separate analysis. Exercise echocardiography was superior to exercise-induced ST-segment depression in the diagnosis of coronary artery disease. In the overall sample of 70 patients, the sensitivity of exercise echocardiography against percent diameter stenosis was 84%, against pressure gradient 86%. The specificity against these two parameters was 86% and 84%, respectively. When analysing the subgroup of 40-69% stenoses (N = 14), sensitivity of exercise echocardiography against percent diameter stenosis was 67%, against pressure gradient 88%. The specificity against these two parameters was 100% and 84%, respectively.(ABSTRACT TRUNCATED AT 250 WORDS)
D Atar; S Ali; F Steensgaard-Hansen; K Saunamäki; P S Ramanujam; H Egeblad; S Haunsø
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of cardiac imaging     Volume:  11     ISSN:  0167-9899     ISO Abbreviation:  Int J Card Imaging     Publication Date:  1995 Mar 
Date Detail:
Created Date:  1995-05-30     Completed Date:  1995-05-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8600426     Medline TA:  Int J Card Imaging     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1-7     Citation Subset:  IM    
University Hospital (Rigshospitalet), Department of Medicine, Copenhagen, Denmark.
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MeSH Terms
Aged, 80 and over
Coronary Angiography*
Exercise Test
Middle Aged
Myocardial Ischemia / diagnosis*
Predictive Value of Tests
Sensitivity and Specificity

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