Number of equivalent chest PA X-rays | ||||||
---|---|---|---|---|---|---|
0 | 1-10 | 10-50 | 50-100 | 100-500 | >500 | |
Italian natural background radiation | 4.4 | 51.4 | 17.7 | 14.2 | 10.3 | 2.0 |
Lumbar spine X-ray | 0.3 | 47.8 | 30.5 | 16.3 | 4.6 | 0.4 |
Bilateral mammography | 7.0 | 50.6 | 28.2 | 10.6 | 3.0 | 0.7 |
(two projections each) | ||||||
Chest CT (without contrast) | 1.0 | 2.8 | 16.3 | 26.1 | 46.9 | 7.0 |
Pelvis MRI | 95.0 | 1.7 | 0.8 | 0.9 | 1.1 | 0.4 |
F18-FDG PET CT | 0.7 | 4.8 | 9.4 | 14.3 | 28.6 | 42.2 |
Abdominal US | 96.1 | 1.5 | 1.1 | 0.4 | 0.8 | 0.1 |
99mTc-Sestamibi cardiac scintigraphy | 0.9 | 10.3 | 15.2 | 15.4 | 27.9 | 30.3 |
(stress + rest test, 2-day protocol) |