TABLE 2

ROC Quantitative Analysis of ¹⁸F-Alfatide II and ¹⁸F-FDG in Differentiating Breast Cancer from Benign Breast Lesion

Tracer	Cutoff value	AUC	Sensitivity	Specificity	Youden index
¹⁸F-alfatide II	SUV_max 1.6	0.738	97.6%	54.5%	52.1%
	SUV_mean 1.28	0.752	92.9%	63.6%	56.5%
¹⁸F-FDG	SUV_max 3.68	0.838	78.6%	81.8%	60.4%
	SUV_mean 2.26	0.840	73.8%	81.8%	55.6%