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Representative values and ranges of effective dose estimates reported in the literature for selected radiological studies[1]

Representative values and ranges of effective dose estimates reported in the literature for selected radiological studies[1]
Exam Representative effective dose value (mSv) Range of reported effective dose values (mSv)
Chest x-ray PA and lateral 0.1 0.05 to 0.24
CT chest 7 4 to 18
CT abdominal 8 4 to 25
CT pelvis 6 3 to 10
Coronary calcium CT* 3 1 to 12
64-slice coronary CTA
Without tube current modulation 15 12 to 18
With tube current modulation[2] 9 8 to 18
Dual source coronary CTA
With tube current modulation 13 6 to 17
Prospectively triggered coronary CTA[3] 3 2 to 4
Diagnostic invasive coronary angiogram 7 2 to 16
Percutaneous coronary intervention or radiofrequency ablation 15 7 to 57
CT: computed tomography; CTA: computed tomographic angiography; FDG: fluoro-deoxy glucose; PA: postero-anterior.
* Data combine prospectively triggered and retrospectively gated protocols. The Writing Group estimates the representative effective dose estimate for prospectively triggered coronary calcium CT scans to be approximately 1 mSv, and for retrospectively gated scans, 3 mSv.
¶ 64-slice MDCT and dual source CT studies published since 2005 only, data include a survey of the literature by the Writing Group.
References:
  1. Mettler FA Jr, Huda W, Yoshizumi TT, Mahesh M. Effective doses in radiology and diagnostic nuclear medicine: a catalog. Radiology 2008; 248:254.
  2. Jakobs TF, Becker CR, Ohnesorge B, et al. Multislice helical CT of the heart with retrospective ECG gating: reduction of radiation exposure by ECG-controlled tube current modulation. Eur Radiol 2002; 12:1081.
  3. Earls JP, Berman EL, Urban BA, et al. Prospectively gated transverse coronary CT angiography versus retrospectively gated helical technique: improved image quality and reduced radiation dose. Radiology 2008; 246:742.
Reproduced with permission from: Gerber TC, Carr JJ, Arai AE, et al. Ionizing Radiation in Cardiac Imaging: A Science Advisory From the American Heart Association Committee on Cardiac Imaging of the Council on Clinical Cardiology and Committee on Cardiovascular Imaging and Intervention of the Council on Cardiovascular Radiology and Intervention. Circulation 2009; 119:1056-1065. Copyright © 2009 American Heart Association, Inc.
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