Table 3.

Performance of Each Model Based on Logistic Regression

Model	Phase	Accuracy	Precision	AUC_train	AUC_test	Sensitivity	Specificity	Youden
Radiomics	T2	0.641	0.727	0.716	0.694	0.190	0.951	0.141
	AP	0.806	0.789	0.876	0.824	0.714	0.869	0.583
	DP	0.592	0.500	0.557	0.564	0.024	0.984	0.008
	PVP	0.816	0.926	0.856	0.835	0.691	0.934	0.625
Clinic- Radiomics	T2	0.699	0.739	0.790	0.774	0.405	0.902	0.307
	AP	0.825	0.816	0.902	0.863	0.738	0.918	0.656
	DP	0.786	0.794	0.830	0.816	0.643	0.885	0.528
	PVP	0.796	0.862	0.911	0.880	0.762	0.869	0.631
Clinical		0.738	0.682	0.767	0.740	0.600	0.852	0.452

Note: Unless otherwise noted, the data are the test set results of each model. All clinical information was included in the construction of the clinical model and clinic-radiomics model.

Abbreviations: T2, T2-weighted imaging; AP, Arterial phase; PVP, Portal vein phase; DP, Delayed phase; AUC, area under the curve.