National
Council on Radiation Protection and Measurements (NCRP) - According to the
recently published NCRP Report No. 184 on the medical radiation exposure of
patients in the United States (2019), there has been a 15-20% reduction (from
2.92 mSv to 2.16 mSv) in non-therapeutic medical radiation dose to individuals
of the U.S. population in the decade between 2006 and 2016. Specifically, the
estimated effective dose per person decreased from 0.3 mSv in 2006 to 0.22 mSv
in 2016 for radiography and fluoroscopy, from 0.73 mSv to 0.32 mSv in nuclear
medicine, and from 1.46 mSv to 1.37 mSv for CT. This Report No. 184 is an
update of NCRP Report No. 160, Ionizing Radiation Exposure of the Population of
the United States, Section 4 (Medical Exposure of Patients) (2009).
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Source: National Council on Radiation Protection and Measurements