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. Author manuscript; available in PMC: 2015 Jun 18.
Published in final edited form as: Invest Radiol. 2015 Apr;50(4):195–204. doi: 10.1097/RLI.0000000000000100

Table 4.

ROC analysis of the parameters at t2.

Parameter Cutoff Sensitivity Specificity PPV AUC
LD 1.91 (cm) 0.92 0.38 0.46 0.58
ADC 1.4 (×10−3
mm2/s)		 0.83 0.67 0.59 0.81
Ktrans 0.1 (min−1) 0.67 0.75 0.62 0.68
kep 0.28 (min−1) 0.83 0.65 0.59 0.77
ve 0.65 0.17 0.95 0.67 0.52
vp 0.04 0.50 0.80 0.60 0.62
kep/ADC 3.32 (1/mm2) 0.92 0.75 0.69 0.86