Prediction of microvascular invasion in solitary hepatocellular carcinoma ≤ 5 cm based on computed tomography radiomics

Table 2 Comparison of predictive performance between radiomics tags and image features

	Training group		Verification group
	AUC (95%CI)	P value	AUC (95%CI)	P value
Rad-score	0.724 (0.584-0.863)		0.745 (0.655-0.834)
TTPVI	0.590 (0.500-0.679)		0.522 (0.393-0.651)
RVI	0.545 (0.462-0.628)		0.528 (0.401-0.655)
Rad vs TTPVI		0.018		0.043
Rad vs RVI		0.002		0.048

AUC: Area under the curve; CI: Confidence interval; TTPVI: Two-trait predictor of venous invasion; RVI: Radiogenomic invasion; Rad-score: Radiomics score.