title: Radiation dose reduction in chest CT: a review.
abstract: OBJECTIVE
  This article aims to summarize the available data on reducing radiation dose exposure in routine chest CT protocols. First, the general aspects of radiation dose in CT and radiation risk are discussed, followed by the effect of changing parameters on image quality. Finally, the results of previous radiation dose reduction studies are reviewed, and important information contributing to radiation dose reduction will be shared.
  
  
  CONCLUSIONS
  A variety of methods and techniques for radiation dose reduction should be used to ensure that radiation exposure is kept as low as is reasonably achievable.
authors.affiliation: Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, USA.
authors.forename: Takeshi
authors.initials: T
authors.lastname: Kubo
authors.forename: Pei-Jan Paul
authors.initials: PJ
authors.lastname: Lin
authors.forename: Wolfram
authors.initials: W
authors.lastname: Stiller
authors.forename: Masaya
authors.initials: M
authors.lastname: Takahashi
authors.forename: Hans-Ulrich
authors.initials: HU
authors.lastname: Kauczor
authors.forename: Yoshiharu
authors.initials: Y
authors.lastname: Ohno
authors.forename: Hiroto
authors.initials: H
authors.lastname: Hatabu
mesh_terms: D001822:Body Burden; D005260:Female; D006801:Humans; D008875:Middle Aged; D011829:Radiation Dosage; D013902:Radiography, Thoracic / Q000379:methods*; D011874:Radiometry / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*