Análise comparativa do fractional flow reserve (FFR) e do instantaneous wave‐free ratio (iFR): resultados de um registo de 5 anos

iFR had a reasonable diagnostic performance. Operators often chose to perform FFR despite conclusive iFR results. iFR and FFR were highly concordant, but a non‐negligible proportion of lesions classified as ischemic by iFR were classified as non‐ischemic by FFR. iFR had no impact on procedural characteristics.