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Content Provider | IEEE Xplore Digital Library |
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Author | Moertl, D. Binder, T. Haddad, M. Gottsauner-Wolf, M. Sochor, H. Probst, P. Porenta, G. |
Copyright Year | 1995 |
Description | Author affiliation: Dept. of Cardiology, Wien Univ., Austria (Moertl, D.; Binder, T.; Haddad, M.; Gottsauner-Wolf, M.; Sochor, H.; Probst, P.; Porenta, G.) |
Abstract | The aim of the study was to compare visual estimates of the severity of coronary stenoses (VE) and quantitative coronary angiography (QCA) and to relate both parameters to myocardial perfusion scintigraphy. The authors studied 80 patients (63 men, 17 women) with angiographically determined single vessel disease (47 LAD, 22 LCX, 11 RCA) and no prior myocardial infarction. 45 of these patients also underwent a Tl-201 perfusion SPECT. VE was performed from coronary angiograms by 3 independent observers. QCA was performed off-line using the QCA-CMS 2.3D. Interobserver variability of VE was highest for intermediate stenoses (40-60% diameter stenosis). VE agreed better with QCA%-area stenosis for severe lesions (>50%-diameter stenosis) and with QCA%-diameter stenosis for mild lesions (<40%-diameter stenosis). Diagnostic accuracies of VE and QCA were high (area under ROC-curve/spl ap/0.90). 50% QCA%-diameter stenosis and 63% percent stenosis by VE were the optimal threshold values to differentiate normal and abnormal results of myocardial scintigraphy. Thus, VE yields adequate accuracy in most clinical routine patients. For borderline lesions and for scientific studies QCA should be preferred. |
Starting Page | 145 |
Ending Page | 148 |
File Size | 382304 |
Page Count | 4 |
File Format | |
ISBN | 0780330536 |
DOI | 10.1109/CIC.1995.482593 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 1995-09-10 |
Publisher Place | Austria |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Arteries Angiography Myocardium Quantum cellular automata Lesions Coronary arteriosclerosis Cardiology Ischemic pain Optical computing Catheters |
Content Type | Text |
Resource Type | Article |
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