Table 2. Diagnostic Performance of the Radiomics-Based and Non-Conversion Models in the Training and External Validation Sets.

Model	Training set		External validation set
	Accuracy	F1-macro score	Accuracy	p value	F1-macro score	p value
Radiomics-based model	0.902 (0.820–0.984)	0.885 (0.798–0.973)	0.902 (0.820–0.984)	0.004	0.861 (0.747–0.973)	0.002
Non-conversion model	0.745 (0.625–0.865)	0.723 (0.600–0.846)	0.765 (0.648–0.881)		0.699 (0.596–0.824)

Parentheses indicate 95% confidence intervals.