Strategies for reducing radiation dose in CT.
In recent years, the media has focused on the potential danger of radiation exposure from CT, even though the potential benefit of a medically indicated CT far outweighs the potential risks. This attention has reminded the radiology community that doses must be as low as reasonably achievable (ALARA) while maintaining diagnostic image quality. To satisfy the ALARA principle, the dose reduction strategies described in this article must be well understood and properly used. The use of CT must also be justified for the specific diagnostic task.
McCollough
Cynthia H
CH
Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA. mccollough.cynthia@mayo.edu
Primak
Andrew N
AN
Braun
Natalie
N
Kofler
James
J
Yu
Lifeng
L
Christner
Jodie
J
D006801:Humans; D011829:Radiation Dosage; D011832:Radiation Injuries / Q000517:prevention & control*; D011835:Radiation Protection / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000009:adverse effects