TABLE 4

Comparison of Single- and Dual–Time-Point ¹⁸F-FDG PET Results for Staging of Nodal Metastasis Based on Patient-by-Patient Analysis (Surgical Cases and Definitive Pathologic N3 cases)

	Number of patients				Sensitivity		Specificity		Accuracy
Parameter	N0 (TN)	N1	N2	N3	%	95% CI (%)	%	95% CI (%)	%	95% CI (%)
Early imaging	29/45	4/6	21/21	2/2	93	77–99	64^*	49–78	76^*	64–85
Delayed imaging	33/45	5/6	21/21	2/2	97	82–100	73^*	58–85	82^*	72–90
RI SUV	44/45	6/6	21/21	2/2	100		98	88–99	99	93–100

↵* P < 0.001 vs. RI SUV using McNemar test.