Table 2.

Performances of the radiomics models in the primary cohort and validation cohort

	Accuracy (95% CI)	Sensitivity (95% CI)	Specificity (95% CI)
Primary cohort
Logistic	0.903 (0.833–0.950)	0.900 (0.669–0.982)	0.903 (0.820–0.952)
SVM	0.912 (0.843–0.957)	0.950 (0.731–0.997)	0.903 (0.820–0.952)
GBM	0.973 (0.924–0.995)	1.000 (0.799–1.000)	0.946 (0.902–0.992)
Validation cohort
Logistic	0.797 (0.678–0.887)	0.727 (0.393–0.927)	0.811 (0.676–0.901)
SVM	0.766 (0.643–0.863)	0.818 (0.478–0.968)	0.755 (0.614–0.858)
GBM	0.813 (0.695–0.899)	0.727 (0.393–0.927)	0.830 (0.697–0.915)

SVM: support vector machine; GBM: gradient boosting machine