Table 4.

Comparison Between ⁶⁸Ga-DOTA-IBA and ¹⁸F-NaF using TBR in the Diagnosis of Bone Metastases.

Index	Cutoff	Sensitivity	Specificity	AUC	Youden index*	P	P’ (Inter group comparison)
TBR-IBA	1.45	91%	66%	0.832	0.560	<0.001	0.248
TBR-NaF	4.95	66%	100%	0.890	0.635	<0.001

*Youden index=Sensitivity+Specificity-1.