Table 4.

Predictive performance of the radiomic signature and radiomic Nomogram

Model	Radiomic signature			Radiomic nomogram
	Specificity	Sensitivity	AUC (95% CI)	Specificity	Sensitivity	AUC (95% CI)
Training set	0.740	0.769	0.836 (0.750 ~ 0.901)	0.948	0.734	0.903 (0.828 ~ 0.952)
Validation set 1	0.816	0.700	0.811 (0.671 ~ 0.909)	0.790	0.900	0.884 (0.759 ~ 0.958)
Validation set 2	0.812	0.714	0.822 (0.690 ~ 0.915)	0.838	0.857	0.876 (0.754 ~ 0.952)

AUC Area under the receiver operating characteristic (ROC) curve, CI Confidence interval