TABLE 3.
Representative values and ranges of effective dose estimates reported in the literature for selected radiological studies38,42
| Examination | Representative effective dose value (mSv) | Range of reported effective dose values (mSv) | Administered activity (MBq) |
|---|---|---|---|
| chest X-ray PA and lateral | 0.1 | 0.05–0.24 | NA |
| coronary calcium CTa | 3 | 1–12 | NA |
| 64-slice CCTAb without tube current modulation | 15 | 12–18 | NA |
| 64-slice CCTAb with tube current modulation21 | 9 | 8–18 | NA |
| prospectively triggered CCTAb22 | 3 | 2–4 | NA |
| diagnostic invasive coronary angiogram | 7 | 2–16 | NA |
| percutaneous coronary intervention or radiofrequency ablation | 15 | 7–57 | NA |
| myocardial perfusion study | |||
| sestamibi (1-day) stress/rest SPECT | 9 | – | 1100 |
| thallium stress/rest SPECT | 41 | – | 185 |
| F-18 FDG PET | 14 | – | 740 |
| rubidium-82 PET | 5 | – | 1480 |
a
Data combine prospectively triggered and retrospectively gated protocols.
The representative effective dose is approximately 1 mSv for prospectively triggered coronary calcium CT scans and 3 mSv for retrospectively gated scans.
b
64-slice multidetector-row CT and dual-source CT studies published since 2005 only; data include a survey of the literature by Gerber et al.
Abbreviations: CT – computed tomography, CCTA – coronary CT angiography, FDG – fluorodeoxyglucose, NA – not applicable, PA – posteroanterior, PET – positron emission tomography, SPECT – single photon emitted computed tomography