Tracer Dose of Each Phantom in 3 Parathyroid Imaging Protocols
| Protocol | Thyroid (MBq) | Parathyroid (MBq) | Background (MBq/mL) |
| Dual-phase 99mTc-sestamibi | |||
| Early phase (99mTc) | 4.0 | 0.1 | 0.02 |
| Delayed phase (99mTc) | 0.5 | 0.07 | 0.014 |
| Dual-tracer 99mTc-sestamibi/99mTc-pertechnetate | |||
| Single tracer (99mTc) | 4.0 | — | 0.02 |
| Dual tracer (99mTc) | 8.0 | 0.1 | 0.04 |
| Dual-tracer 99mTc-sestamibi/123I-iodine | |||
| 99mTc | 4.0 | 0.1 | 0.02 |
| 123I | 0.74 | — | 0.006 |