Table 4.

Diagnostic performance of the clinical, radiomics, and combined models

Model	AUC [95% CI]	Accuracy	Sensitivity	Specificity
Training cohort
Clinical model	0.743 (0.681-0.805)	0.840	0.951	0.525
Radiomics model	0.971 (0.962-0.981)	0.954	0.927	0.981
Combined model	0.981 (0.974-0.989)	0.960	0.927	0.981
Internal-testing cohort
Clinical model	0.759 (0.733-0.743)	0.833	0.928	0.576
Radiomics model	0.827 (0.799-0.855)	0.822	0.871	0.692
Combined model	0.842 (0.817-0.866)	0.822	0.885	0.653
External-testing cohort
Clinical model	0.686 (0.682-0.709)	0.735	0.743	0.714
Radiomics model	0.745 (0.699-0.791)	0.773	0.794	0.714
Combined model	0.749 (0.705-0.793)	0.773	0.794	0.714

AUC, area under curve; CI, confidence interval.