18F-FDG Radiation Dosimetry for Adults and Children
| Patient | Intravenously administered activity, MBq/kg (mCi/kg) | Organ receiving the largest radiation dose, mGy/MBq (rads/mCi) | Effective dose, mSv/MBq (rems/mCi) |
|---|---|---|---|
| Adult | 370–740 (10–20) | Bladder, 0.16* (0.59) | 0.019 (0.070) |
| Child (5 y old) | 5.18–7.4 (0.14–0.20) | Bladder, 0.32† (1.2) | 0.050 (0.18) |
↵* Voiding interval, 3.5 h. Changes in bladder wall dose are approximately linear with changes in voiding interval; therefore, for a voiding interval of 2.0 h, dose to bladder wall would change by a factor of 2/3.5.
↵† Voiding interval, 2.0 h.
Data are from International Commission on Radiological Protection. Radiation Dose to Patients from Radiopharmaceuticals. St. Louis, MO: Elsevier; 2000:49. ICRP publication 80.