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Distribution of iFR gap locations after stent implantation. The iFR gap was most commonly located along the vessel length (a). Distribution of new iFR occurrences after coronary intervention (b). A new iFR gradient after stenting occurred in 11 patients (15.7%) and was commonly distal to the stent. distal ref. distal reference vessel, proximal ref. proximal reference vessel, iFR instantaneous wave-free ratio
