作者
Diana L Miglioretti, Eric Johnson, Andrew Williams, Robert T Greenlee, Sheila Weinmann, Leif I Solberg, Heather Spencer Feigelson, Douglas Roblin, Michael J Flynn, Nicholas Vanneman, Rebecca Smith-Bindman
发表日期
2013/8/1
期刊
JAMA pediatrics
卷号
167
期号
8
页码范围
700-707
出版商
American Medical Association
简介
Importance
Increased use of computed tomography (CT) in pediatrics raises concerns about cancer risk from exposure to ionizing radiation.
Objectives
To quantify trends in the use of CT in pediatrics and the associated radiation exposure and cancer risk.
Design
Retrospective observational study.
Setting
Seven US health care systems.
Participants
The use of CT was evaluated for children younger than 15 years of age from 1996 to 2010, including 4 857 736 child-years of observation. Radiation doses were calculated for 744 CT scans performed between 2001 and 2011.
Main Outcomes and Measures
Rates of CT use, organ and effective doses, and projected lifetime attributable risks of cancer.
Results
The use of CT doubled for children younger than 5 years of age and tripled for children 5 to 14 years of age between 1996 and 2005, remained stable between 2006 and 2007, and then began to decline. Effective doses …
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