Radioactive Retention of 99mTc-Radiopharmaceuticals in Syringes and Needles after 30 Minutes of Incubation
| Retention in syringe (%) | |||||
| Radiopharmaceutical | Syringe brand | Undiluted | 1:3 with saline | 1:10 with saline | Retention in needle (%) (undiluted) |
| 99mTc-pertechnetate | A | 1.3 ± 1.0 | 1.5 ± 0.8 | 4.8 ± 1.1 | 4.5 ± 1.1 |
| B | 1.9 ± 0.3 | 1.1 ± 0.1 | 1.4 ± 1.0 | 2.9 ± 1.6 | |
| 99mTc-butedronate | A | 3.6 ± 0.6 | 2.1 ± 0.5 | 1.6 ± 0.8 | 4.3 ± 0.2 |
| B | 2.6 ± 0.8 | 2.2 ± 0.3 | 2.1 ± 0.7 | 2.0 ± 0.4 | |
| 99mTc-oxidronate | A | 2.1 ± 1.8 | 2.8 ± 1.7 | 1.6 ± 0.8 | 2.9 ± 1.9 |
| B | 1.8 ± 1.8 | 2.2 ± 0.2 | 2.3 ± 0.5 | 3.0 ± 1.3 | |
| 99mTc-medronate | A | 2.4 ± 0.3 | 1.4 ± 1.2 | 2.1 ± 2.3 | 3.9 ± 0.4 |
| B | 1.7 ± 1.1 | 1.1 ± 0.6 | 1.8 ± 0.7 | 2.4 ± 0.5 | |
| 99mTc-tetrofosmin | A | 6.7 ± 0.8 | 5.9 ± 1.8 | 4.7 ± 1.8 | 6.7 ± 1.0 |
| B | 6.0 ± 0.3 | 3.5 ± 0.8 | 3.8 ± 0.7 | 3.1 ± 0.4 | |
| 99mTc-sestamibi | A | 6.9 ± 3.6 | 7.3 ± 1.6 | 13.0 ± 2.5 | 5.2 ± 0.2 |
| B | 3.3 ± 1.1 | 6.3 ± 0.8 | 9.0 ± 0.9 | 2.5 ± 0.2 | |
| 99mTc-succimer | A | 10.7 ± 1.4 | 9.8 ± 1.9 | 6.9 ± 0.2 | 13.9 ± 0.2 |
| B | 13.9 ± 2.0 | 14.2 ± 1.1 | 19.5 ± 4.3 | 6.9 ± 0.2 | |
| 99mTc-DMSA(V) pentavalent | A | 1.8 ± 0.3 | 2.2 ± 0.2 | 2.1 ± 1.2 | 4.5 ± 0.9 |
| B | 2.4 ± 0.3 | 2.4 ± 0.6 | 2.0 ± 0.5 | 1.7 ± 0.5 | |