Table 3. The diagnostic performance of R2*_largest and R2*_whole in evaluation of renal masses.

	R2*largest				R2*whole
	Cut-off value	AUC	Sensitivity	Specificity	Cut-off value	AUC	Sensitivity	Specificity
Observe 1
RCC vs Benign lesion	34.28	0.75	75.02	63.26	39.94	0.79	71.83	77.82
HG a vs LG b	35.08	0.73	60.39	79.32	33.60	0.70	62.74	77.11
ccRCC vs other type c	34.74	0.59	60.14	53.28	36.98	0.57	40.00	86.96
Observe 2
RCC vs Benign lesion	33.52	0.64	31.25	96.70	37.67	0.78	68.50	78.81
HG vs LG	29.26	0.71	57.26	80.95	36.85	0.72	51.61	85.11
ccRCC vs other type	29.15	0.53	41.43	73.91	34.97	0.59	42.86	85.06

^a. high grade of ccRCC.

^b. low grade of ccRCC.

^c. renal masses other than ccRCC.