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AJR Am J Roentgenol. 2008 Feb;190(2):335-43. doi: 10.2214/AJR.07.2556.

Radiation dose reduction in chest CT: a review.

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  • 1Department of Radiology, Beth Israel Deaconess Medical Center, Boston, MA, USA.



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.


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.

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