Table 5.

Diagnostic performance of histogram parameters for differentiating early from advanced stage thymic epithelial tumours

Parameters	Cut-off value	AUC	Sensitivity (100%)	Specificity (100%)
ADC histogram
ADCmean	1.245	0.876 (0.754–0.997)	86.96 (66.4–97.2)	85.71 (57.2–98.2)
ADCmedian	1.168	0.863 (0.742–0.985)	65.22 (42.7–83.6)	100.00 (76.8–100.0)
ADC10	0.689	0.913 (0.816–1.000)	91.30 (72.0–98.9)	85.71 (57.2–98.2)
ADC90	1.608	0.857 (0.738–0.976)	65.22 (42.7–83.6)	100.00 (76.8–100.0)
ADCHS-ROI	1.183	0.792 (0.641–0.943)	82.61 (61.2–95.0)	71.43 (41.9–91.6)

Data in parentheses indicates 95% confidence intervals. AUC indicates largest area under the ROC curve.

ADCn, nth percentile value of cumulative ADC histogram.