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Excellent accuracy (0.94) of QFR versus FFR and good accuracy (0.74) of iFR versus FFR. Wakayama Medical University, Japan. In: Coronary Artery Disease 2018

Conclusion from the paperQFR was correlated highly with iFR as well as FFR. Like FFR and iFR, QFR might be reliable for assessing the physiological severity of coronary stenosis in the angiographic intermediate lesions.
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