TABLE 4
Pretreatment Activity Calculation Methods
| Method | Activity calculation equation |
| Empiric (33) | Tumor load ≤ 25% = 2.0 GBq whole-liver delivery, tumor load 25%–50% = 2.5 GBq whole-liver delivery, tumor load ≥ 50% = 3.0 GBq whole-liver delivery |
| Body surface area (33) |  in which:  |
| Partition (33) |  in which, based on MAA SPECT/CT:  |
| Glass microspheres (34) |  with upper limit of lung shunt activity:  |