Foetal radiation dose and subsequent childhood cancer risk for common radiation-associated radiological investigations.4
| Image | Radiation dose to foetus (mGy) | Risk of childhood cancer per examination |
|---|---|---|
| CXR | 0.001–0.01 | <1 in 1,000,000 |
| CT Head | 0.001–0.01 | <1 in 1,000,000 |
| AXR | 0.1–1.0 | 1 in 100,000 to 1 in 10,000 |
| CTPA | 0.01–0.1 | 1 in 1,000,000 to 1 in 100,000 |
| V/Q Scan | 0.1–1.0 | 1 in 100,000 to 1 in 10,000 |
| CT Chest/Liver | 0.1–1.0 | 1 in 100,000 to 1 in 10,000 |
| CT Abdomen | 1.0–10 | 1 in 10,000 to 1 in 1000 |
| CT-CAP | 10–50 | 1 in 1000 to 1 in 200 |