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Projection and examination | Foetal dose range (mGy) | Risk of childhood cancer | Risk of hereditary effects |
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AP | Abdomen | 0.05–3.74 | 1 in 250000–1 in 3300 | 1 in 3300000–1 in 50000 |
AP | Chest | <0.001–0.001 | <1 in 12500000–1 in 1250000 | <1 in 200000000–1 20000000 |
LAT | Chest | <0.001–0.01 | <1 in 12500000 to 1 in 1250000 | <1 in 200000000–1 20000000 |
PA | Chest | <0.001–0.01 | <1 in 12500000 to 1 in 1250000 | <1 in 200000000–1 20000000 |
PA | Colon | 1.66-2.20 | 1 in 10000–1 in 5000 | 1 in 125000–1 in 100000 |
| Hip joint | 0.01–0.05 | 1 in 1250000–250000 | 1 in 20000000–1 in 3300000 |
AP | Lumbar spine | 0.11–4.42 | 1 in 110000–1 in 2500 | 1 in 1700000–1 in 50000 |
PA | Lumbar spine | 0.02–0.80 | 1 in 500000–1 in 17000 | 1 in 10000000–1 in 250000 |
LAT | Lumbar spine | 0.03–3.89 | 1 in 500000–1 in 3300 | 1 in 5000000–1 in 50000 |
| Lumbosacral joint | 0.02–0.80 | 1 in 500000–1 in 17000 | 1 in 10000000–1 in 250000 |
AP | Pelvis | 0.18–1.07 | 1 in 100000–1 in 11000 | 1 in 1100000–1 in 200000 |
AP | Stomach | 0.01–1.33 | 1 in 1250000–1 in 10000 | 1 in 20000000–1 in 140000 |
LAO | Stomach | <0.01–0.01 | <1 in 1250000–1 in 1250000 | <1 in 20000000–1 in 20000000 |
LAT | Stomach | <0.01–0.01 | <1 in 1250000–1 in 1250000 | <1 in 20000000–1 in 20000000 |
LPO | Stomach | <0.01–0.01 | <1 in 1250000–1 in 1250000 | <1 in 20000000–1 in 20000000 |
PA | Stomach | <0.01–0.01 | <1 in 1250000–1 in 1250000 | <1 in 20000000–1 in 20000000 |
AP | Thoracic Spine | <0.001–0.85 | 1 in 12500000–1 in 14000 | <1 in 200000000–1 in 250000 |
LAT | Thoracic Spine | <0.001 | <1 in 12500000 | <1 in 200000000 |
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| Barium enema | 1.14–16.27 | 1 in 11000–1 in 1000 | 1 in 170000–1 in 12500 |
| Barium meal | 0.08–0.19 | 1 in 170000–1 in 50000 | 1 in 2500000–1 in 1000000 |
| Cholangiography | 1.57–6.65 | 1 in 10000–1 in 2000 | 1 in 125000–1 in 33000 |
| Barium follow through | 0.17–0.64 | 1 in 100000–1 in 20000 | 1 in 1100000–1 in 330000 |
| IVU | 0.05–1.33 | 1 in 250000–1 in 10000 | 1 in 3300000–1 in 140000 |
| KUB | 0.01–0.59 | 1 in 1250000– 1 in 20000 | 1 in 20000000–1 in 330000 |
AP | Urinary bladder | 1.49 | 1 in 10000 | 1 in 140000 |
| Nephrostomy | <0.01–0.37 | 1 in 1250000–33000 | <1 in 20000000–1 in 500000 |
|
| CT-Abdomen | 1.04–3.65 | 1 in 12500–1 in 3300 | 1 in 200000–1 in 50000 |
| CT-Chest | 0.02 | 1 in 500000 | 1 in 10000000 |
| CT-Lumbar spine | 13.61–21.85 | 1 in 1000–1 in 500 | 1 in 14000–1 in 10000 |
| CT-Pelvis | 1.32–17.06 | 1 in 10000–1 in 1000 | 1 in 140000–1 in 11000 |
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