Effect of Labeling Activity and Storage Form on RCP of Stabilized 99mTc-d,l-HMPAO over Time
| 1,110 MBq | 2,600–3,700 MBq | |||||
|---|---|---|---|---|---|---|
| Time (h) | Vial | Syringe | Needle | Vial | Syringe | Needle |
| 0 | 93.1 ± 1.6 | NA | NA | 91.4 ± 1.0 | NA | NA |
| 2 | 92.1 ± 0.9 | 89.8 ± 2.1 | 74.2 ± 5.0 | 89.0 ± 1.4 | 85.9 ± 1.4 | 73.3 ± 8.5 |
| 4 | 91.1 ± 1.0 | 88.7 ± 2.0 | 59.8 ± 5.1 | 85.3 ± 3.0 | 80.2 ± 3.1 | 57.1 ± 4.5 |
NA = not applicable.
Values represent percentage of RCP (mean ± SD); n = 10. P < 0.01 for vials between both groups of labeling activities at all times. P < 0.01 for syringes in both groups of labeling activities at 2 and 4 h. P < 0.01 between vials and syringes in both groups of labeling activities at 2 and 4 h. P < 0.01 between vials and needles in both groups of labeling activities at 2 and 4 h. P < 0.01 between syringes and needles in both groups of labeling activities at 2 and 4 h.