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Arm position, scan length and effective radiation dose
| Arm position | Scan length | N | Median radiation dose |
|---|---|---|---|
| arms-out | ≤4 cm | 10 | 0.38 mSv (0.32–0.43) |
| >4 cm | 24 | 0.41 mSv (0.35–0.46) | |
| arms-in | ≤4 cm | 16 | 0.41 mSv (0.36–0.46) |
| >4 cm | 39 | 0.49 mSv arm (0.39–0.62) |
N: number of cases. Units: cm = centimetres; mSv = millisievert
