Table 3. Results of ROC Analyses to Define Differentiation Criteria between Cysts and Solid Masses in Development Dataset.

Image Variables	AUROC (95% CI)	Cutoff Value	P*	Youden's J
Size (cm)	0.625 (0.360–0.890)	2.8	0.399	0.583
nT2‡	0.818 (0.592–1.000)	0.39	0.047	0.618
nT1‡	0.611 (0.282–0.940)	1.93	0.454	0.417
nADC†‡	0.909 (0.753–1.000)	0.63	0.011	0.709
RER (%)	1.000 (1.000–1.000)	26.1	0.001	1.000

^*Null hypothesis: true AUROC = 0.5, ^†Missed in two cases (one cyst and one solid mass), ^‡Fraction values without units. AUROC = area under receiver operating characteristic curve, CI = confidence interval, ROC = receiver operating characteristic