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Radiation dose estimates for spine imaging

Radiation dose estimates for spine imaging
Procedure Approximate effective dose (mSv) Comparable duration of natural background radiation (in years)
Spine radiograph (x-ray) 1.4 0.5
CT spine 8.8 3
Fluoroscopic interventional angiogram of the head and neck 5 1.7
CT angiogram of the head and neck 14 4.7
CT: computed tomography.
Data from:
  1. RadiologyInfo.org. Available at: https://www.radiologyinfo.org/en/info.cfm?pg=safety-xray (Accessed on March 10, 2021).
  2. Smith-Bindman R, Lipson J, Marcus R, et al. Radiation dose associated with common computed tomography examinations and the associated lifetime attributable risk of cancer. Arch Intern Med 2009; 169:2078.
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