Fetal Dose in Early Pregnancy and at End of Each Trimester of Pregnancy
| Radiopharmaceutical: 18F-FDG | Early pregnancy (mGy/MBq) | Gestation | ||||
|---|---|---|---|---|---|---|
| 3 mo (mGy/MBq) | 6 mo (mGy/MBq) | 9 mo (mGy/MBq) | ||||
| Russell et al. (1) | 2.7 × 10−2 | 1.7 × 10−2 | 9.4 × 10−3 | 8.1 × 10−3 | ||
| MIRD DER (no crossover, 2-h void) | 1.8 × 10−2 | 9.6 × 10−3 | 6.5 × 10−3 | 5.5 × 10−3 | ||
| MIRD DER (no crossover, 4-h void) | 2.2 × 10−2 | 1.3 × 10−2 | 7.9 × 10−3 | 6.8 × 10−3 | ||
| MIRD DER (crossover, 2-h void) | 1.8 × 10−2 | 1.8 × 10−2 | 1.6 × 10−2 | 1.5 × 10−2 | ||
| MIRD DER (crossover, 4-h void) | 2.2 × 10−2 | 2.2 × 10−2 | 1.7 × 10−2 | 1.7 × 10−2 | ||
Values suggested by Russell et al. (1) are compared with new values including placental transfer of activity (3) and updated maternal organ activity values (4).