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. 2021 Apr 29;94(1122):20201114. doi: 10.1259/bjr.20201114

Table 4.

AUC and optimal cut-off values of the statistically significant parameters (p < 0.05) in the differentiation of high-grade from low-grade urinary bladder cancer, listed MR sequence-wise

Parameter SSF AUC 95% CI Cut-off Sensitivity Specificity
T 2W
Skewness 2 0.748 0.585–0.871 <−0.930 68.97 81.82
Skewness 3 0.727 0.564–0.856 <−0.479 75.86 72.73
Kurtosis 2 0.712 0.547–0.844 >2.009 41.38 100
Kurtosis 3 0.693 0.527–0.829 >0.270 41.38 100
DWI b1500
Kurtosis 5 0.779 0.620–0.895 >−0.379 58.62 100
Kurtosis 6 0.752 0.591–0.875 >−0.560 65.52 81.82
ADC
Mean 0 0.897 0.759–0.970 <963.479 79.31 100
MPP 0 0.897 0.759–0.970 <963.479 79.31 100
Skewness 2 0.702 0.537–0.836 <−0.519 65.52 81.82
Skewness 3 0.721 0.557–0.851 <−0.460 65.52 90.91
Kurtosis 4 0.704 0.539–0.837 >−0.280 48.28 90.91
Kurtosis 5 0.828 0.675–0.928 >−0.579 79.31 81.82
Kurtosis 6 0.712 0.547–0.844 >−0.730 72.41 72.73

AUC, area under curve; CI, confidence interval; MPP, mean of positive pixels; SSF, spatial scale factor.

Parameters with AUC >0.8 are shown in bold text.