Quantitative flow ratio to predict long-term coronary artery bypass graft patency in patients with left main coronary artery disease

Purpose Fractional flow reserve (FFR) has been demonstrated in some studies to predict long-term coronary artery bypass graft (CABG) patency. Quantitative flow ratio (QFR) is an emerging technology which may predict FFR. In this study, we hypothesised that QFR would predict long-term CABG patency an...

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