Medical radiation exposure in the U.S. in 2006: preliminary results.

Journal Article (Journal Article)

Medical radiation exposure of the U.S. population has not been systematically evaluated for almost 25 y. In 1982, the per capita dose was estimated to be 0.54 mSv and the collective dose 124,000 person-Sv. The preliminary estimates of the NCRP Scientific Committee 6-2 medical subgroup are that, in 2006, the per capita dose from medical exposure (not including dental or radiotherapy) had increased almost 600% to about 3.0 mSv and the collective dose had increased over 700% to about 900,000 person-Sv. The largest contributions and increases have come primarily from CT scanning and nuclear medicine. The 62 million CT procedures accounted for 15% of the total number procedures (excluding dental) and over half of the collective dose. Nuclear medicine accounted for about 4% of all procedures but 26% of the total collective dose. Medical radiation exposure is now approximately equal to natural background radiation.

Full Text

Duke Authors

Cited Authors

  • Mettler, FA; Thomadsen, BR; Bhargavan, M; Gilley, DB; Gray, JE; Lipoti, JA; McCrohan, J; Yoshizumi, TT; Mahesh, M

Published Date

  • November 2008

Published In

Volume / Issue

  • 95 / 5

Start / End Page

  • 502 - 507

PubMed ID

  • 18849682

Electronic International Standard Serial Number (EISSN)

  • 1538-5159

Digital Object Identifier (DOI)

  • 10.1097/01.HP.0000326333.42287.a2


  • eng

Conference Location

  • United States