miPSMA Expression Score
| Score | Reported PSMA expression | Uptake |
| 0 | No | Below blood pool |
| 1 | Low | Equal to or above blood pool and lower than liver* |
| 2 | Intermediate | Equal to or above liver* and lower than parotid gland |
| 3 | High | Equal to or above parotid gland |
↵* For PSMA ligands with liver-dominant excretion (e.g., 18F-PSMA1007) spleen is recommended as reference organ instead of liver.