Table 2.

Performance characteristics of lymphoscintigraphy

Clinical outcomes	99mTc-sulfur colloid	99mTc-tilmanocept	P
Operative duration, minutes, median (IQR)	116 (90–166)	127 (96–150)	0.97
Radiation dose, μCi, median (IQR)	530 (500–550)	547 (510–559)	0.27
Number of hotspots, median (IQR)	2 (1–3)	2 (0–2)	0.18
Number of basins, n (%)			0.69
0	6 (15)	4 (21)
1	25 (61)	10 (53)
2	8 (20)	5 (26)
3	2 (5)	0 (0)
Number of sentinel nodes removed, median (IQR)	3 (1–5)	2 (1–4)	0.32
SLN intraoperative identification, $n$ (%)	36 (88)	16 (84)	0.70
Patients with positive SLNB, $n$ (%)	7 (17)	7 (37)	0.11
False negatives, $n$ (%)	2 (5)	1 (5)	1.00

μCi microcuries, IQR interquartile range