Table 4.

ROC analyses of the significant radiomic features to identify high Ki‐67 status

Radiomic features	Cutoff value	AUC	95% CI		Sensitivity	Specificity	+LR	‐LR
			Lower	Upper
Inverse variance (GLCM)	0.47	0.77	0.68	0.85	0.66	0.78	2.97	0.44
Minor axis (shape)	26.56	0.64	0.54	0.73	0.50	0.81	2.70	0.61
Elongation (shape)	0.80	0.61	0.51	0.70	0.52	0.69	1.64	0.70

+LR, positive likelihood ratio; ‐LR, negative likelihood ratio; AUC, area under the curve; CI, confidence interval; GLCM, Gray Level Non‐uniformity; ROC, receiver operating characteristic.