TABLE 1:

Specificity in the unblinded evaluation

Dose Group and Postdose Time Point	Total Lymph Nodes	Sequence Specificity (%)
Dose Group and Postdose Time Point	Total Lymph Nodes	T2-Weighted	FFE-25	FFE-80
1.1 mg Fe/kg
6 h	41	78	12	20
12 h	41	90	56^*	74^*
24 h	41	80	62^*	87^*
36 h	41	56	62^*	65^†
1.7 mg Fe/kg
6 h	25	88	32	44
12 h	25	92	64	84
24 h	25	100	72	84
36 h	25	92	84	76
2.6 mg Fe/kg
6 h	25	92	56	68
12 h	25	96	84	96
24 h	25	100	96	100
36 h	25	100	96	92
3.4 mg Fe/kg
6 h	19	95	63	89
12 h	19	100	83^‡	95
24 h	19	89	84	95
36 h	19	79	79	79

Note.—The specificity was based on the signal intensity and lymph node architecture. A decrease in the signal intensity of a heterogeneous lymph node indicated a false-positive result.
* The total number of lymph nodes was 39.
† The total number of lymph nodes was 40.
‡ The total number of lymph nodes was 18.