Representative effective radiation dose, range and equivalent number of plain chest radiographs for paediatric cardiac procedures
| Examination | Effective dose, mSv (range) | Chest x-rays (range) |
| Conventional radiology | ||
| Chest x-ray (single posteroanterior) | 0.02 | 1 |
| CT | ||
| Head CT | 4 (1–6) | 200 (50–300) |
| Chest CT | 3 (5–12) | 150 (250–600) |
| Abdomen CT | 5 (4–20) | 250 (200–1000) |
| Interventional cardiology | ||
| Diagnostic catheterisation | 4.6 (0.6–23) | 230 (30–1150) |
| Therapeutic catheterisation | 6 (1–37) | 300 (50–1850) |