Why the study?
Do visual estimates of coronary stenosis severity accurately reflect quantitative angiographic measurements before and after PTCA?
Do visual estimates of coronary stenosis severity accurately reflect quantitative angiographic measurements before and after PTCA?
Visual estimates by operators inaccurately assess PTCA results, overestimating pre-procedure severity and underestimating post-procedure residual stenosis compared to quantitative angiography.
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Visual estimates may overestimate PTCA success; challenges consensus on angiographic assessment and leaves open quantitative standardization.
Bertrand et al. (1993) studied this question.
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