Scaling Factors for Converting Adult Effective Dose to Different Age Categories Based on Published Simulation Data
| Relative dose factor by age | ||||||
|---|---|---|---|---|---|---|
| Procedure | Adult | 15 y | 10 y | 5 y | 1 y | Newborn |
| PET (17) | ||||||
| mSv/mCi | 0.70 | 0.93 | 1.3 | 1.9 | 3.5 | 7.8* |
| mSv/MBq | 1.9 × 10−2 | 2.5 × 10−2 | 3.6 × 10−2 | 5.0 × 10−2 | 9.5 × 10−2 | 2.1 × 10−1* |
| Nominal weight (kg) | 70 | 58 | 32 | 19 | 9.8 | 1.0* |
| CT (relative to adult effective dose) (24) | 1 | 1.15 | 1.42 | 1.62 | 1.85 | 2.25 |
↵* Newborn factors for PET are derived from Niven and Nahmias (22).