Table 2. SUV metrics of lymph nodes as a function of time.

Standard Uptake Value	Benign	Malignant	Total
(SUV)	N = 17	N = 37	N = 54
Maximum
Early (2 min p.i.)
Median	2	3.5	3
(Range)	(1.4–8.4)	(1.4–10)	(1.4–10)
Late (30 min p.i.)
Median	1.4	4.3	3.2
(Range)	(0.95–4.8)	(2.2–11)	(0.95–11)
Difference
Median	−0.64	0.44	0
(Range)	(−3.6– −0.08)	(−1.4–3.8)	(−3.6–3.8)
Relative Difference
Median	−0.32	0.084	0
(Range)	(−0.54– −0.055)	(−0.25–1.4)	(−0.54–1.4)
MeanA50
Early (2 min p.i.)
Median	1.5	2.6	2.3
(Range)	(1.1–5.6)	(1.2–7.2)	(1.1–7.2)
Late (30 min p.i.)
Median	1.1	3.4	2.6
(Range)	(0.75–3.4)	(1.8–8.1)	(0.75–8.1)
Difference
Median	−0.42	0.31	0.03
(Range)	(−2.2–0.02)	(−1–2.7)	(−2.2–2.7)
Relative Difference
Median	−0.29	0.11	0.013
(Range)	(−0.49–0.019)	(−0.22–1.4)	(−0.49–1.4)

Difference = SUV_late – SUV_early.

Relative difference = (SUV_late – SUV_early)/SUV_early.