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Radiation Risk from Medical Imaging in Children

  • Donald P. Frush
  • Kimberly E. Applegate
Chapter

Key Points

■ Medical radiation currently accounts for an increasing percentage (approximately 50%) of the total radiation exposure for the US population (previously about 15%) (moderate evidence).

■ Children are 2–5 (some cite up to 10) times more sensitive to radiation than adults (moderate evidence).

■ There are no data that prove a direct link between low-level radiation from diagnostic imaging and cancer. The best data regarding long-term effects of low-level radiation (100–150 mSv) exposure come from the longitudinal survivor study (LSS) of atomic bomb survivors (moderate evidence).

■ Most major medical and scientific organizations accept the linear, no-threshold model as the preferred model for low-level radiation and cancer risk estimation.

■ The lifetime risk of fatal cancer from a single (relatively high dose) CT in a child has been estimated to be 1:1000 (limited to moderate evidence).

Keywords

Cancer Risk Diagnostic Imaging Dose Length Product Radiation Risk Medical Radiation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Donald P. Frush
    • 1
  • Kimberly E. Applegate
    • 2
  1. 1.Division of Pediatric Radiology, Department of RadiologyDuke Medical CenterDurhamUSA
  2. 2.Department of RadiologyEmory University School of MedicineAtlantaUSA

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