Table 1 Standard average estimated radiation doses of common non-invasive chest imaging in adults (modified from refs. [2] and [21])
From: The risk of cumulative radiation exposure in chest imaging and the advantage of bedside ultrasound
Diagnostic procedures | Effective dose (mSv) | Equivalent CXRs number |
|---|---|---|
Radiology | ||
 Chest radiography (single postero-anterior film) | 0.02 | 1 |
 Chest CT | 6 to 8 | 300 to 400 |
 64-slice coronary CT | 15 (3 to 32) | 750 (150 to 1,600) |
 Calcium score | 3 (1–12) | 150 |
Nuclear medicine | ||
  99mTc-Sestamibi (1100 MBq, 1 day) stress-rest | 9.4 | 470 |
  201Thallium stress/rest reinj. (185 MBq, double injection) | 40.7 | 2,035 |
 PET N-13 ammonia stress-rest (1100 MBq) | 2.4 | 120 |
 PET F-18 FDG rest (400 MBq, viability) | 8 | 400 |
  133Xenon (400 MBq, lung ventilation) | 0.4 | 20 |
  99mTc-MAA (185 MBq, lung perfusion) | 2 | 100 |