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Figure 7: ROC curves of mean MPRI for segments with the three lowest transmural MPRI values (MPRItrans3) and mean MPRI for segments with the three lowest subendocardial MPRI values (MPRIsub3) for prediction of CFR of less than 2.00. The diagnostic accuracy of mean MPRI for segments with the three lowest subendocardial MPRI values (AUC, 0.85; sensitivity, 84%; specificity, 75%; cutoff value, 1.21) was better than that of mean MPRI for segments with the three lowest transmural MPRI values (AUC, 0.79; sensitivity, 79%; specificity, 58%; cutoff value, 1.33).
