Why the study?
Does visual estimation of coronary lesion severity by operators and consensus-readers differ from computer-assisted measurement before and after PTCA?
Population
114 coronary stenoses evaluated before and after percutaneous transluminal coronary angioplasty (PTCA)
Comparison
Visual estimation of lesion severity by the PTCA… vs Computer-assisted measurement using a…
Design
Cross-sectional
Authors
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Visual estimates may bias PTCA decisions; leaves open whether routine quantitative angiography improves outcomes.
Does visual estimation of coronary lesion severity by operators and consensus-readers differ from computer-assisted measurement before and after PTCA?
Visual estimation of coronary stenosis by operators is prone to significant bias, overestimating severity before PTCA and underestimating residual stenosis after PTCA compared to quantitative computer-assisted measurement.
Willems et al. (1994) studied this question.
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