Table 3.

Performance of clinical and radiomic models.

Model		AUC	Sensitivity	Specificity	Accuracy	P value
Training cohort
Clinical model		0.723	0.795	0.594	0.669
Radiomics model	T2WI	0.839	0.833	0.800	0.814
	ADC	0.938	0.897	0.848	0.864
	ADC+T2WI	0.942	0.841	0.905	0.881	<0.001 d
Combined model		0.955	0.886	0.905	0.898	0.214 e
Validation cohort
Clinical model		0.745	0.632	0.844	0.765
Radiomics model	T2WI	0.809	0.867	0.722	0.765
	ADC	0.869	0.833	0.815	0.824
	ADC+T2WI	0.910	0.947	0.844	0.882	0.026 d
Combined model		0.931	0.895	0.875	0.882	0.277 e

^dComparison of ROC curve performance between clinical model and radiomics model using DeLong test.

^eComparison of ROC curve performance between radiomics model and radiomics-Clinical combined model using DeLong test.