TCT-621 Comparison of Quantitative Flow Ratio and Instantaneous Wave-Free Ratio for Immediate Assessment of Non-Culprit Lesions in Patients With ST-Segment Elevation Myocardial Infarction An iSTEMI Substudy

2018 
BACKGROUND: Quantitative flow ratio (QFR) is an angiography-based approach for in-procedure functional evaluation of coronary artery lesions. We evaluated the diagnostic performance of QFR with ins ...
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