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Aim
Comparisons between the resting full‐cycle ratio (RFR), a new physiological resting index, and fractional flow reserve (FFR) in terms of prognostic value are limited. We aimed to identify the prognostic value of concordance between RFR and FFR and to determine the stability of measured RFR.
Methods and Results
We measured FFR and RFR in 161 coronary arteries of 119 patients and classified the...
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