Radiomics Analysis on Noncontrast CT for Distinguishing Hepatic Hemangioma (HH) and Hepatocellular Carcinoma (HCC)

Table 2

Diagnostic performances of radiomic signature and index for distinguishing HH and HCC in the training and validation group.

	Training group		Validation group
	Radiomic signature	Radiomic index	Radiomic signature	Radiomic index
AUROC	0.792	0.88	0.716	0.87
CI	(0.703, 0.882)	(0.817, 0.943)	(0.581, 0.85)	(0.782, 0.957)
Cutoff	−0.267	0.608	0.026	1.942
Sensitivity	0.764	0.806	0.579	0.605
Specificity	0.737	0.816	0.857	1
Positive predictive value	0.846	0.892	0.88	1
Negative predictive value	0.622	0.689	0.529	0.583
Correctly classified	0.755	0.809	0.678	0.746
Comparison of AUROC	P = 0.014	P = 0.003

Note. AUROC: area under the receiver operating characteristics; CI: confidence interval.