Sunday, December 7, 2014

Eye dose monitoring of PET/CT staff

Eye dose monitoring of PET/CT workers.
Authors: Walsh C, O'Connor U, O'Reilly G

QUESTION: does eye radiation dose exposure need to be measured in PET/CT workers?

METHODS: a newly designed dosimeter was used to measure eye dose.

RESULTS: radiographers received the highest exposure of the staff groups studied, with the highest receiving an exposure of 0.5 mSv over the 3-month survey period. The estimated maximum eye dose for 1 year is approximately 2 mSv. A conservative estimate of eye dose can be made as being up to approximately twice the numeric value for whole-body dose.

CONCLUSION: Routine whole-body dose measurements may be a useful starting point for assessing whether eye dose monitoring should be prioritized in a PET facility.

ADVANCES IN KNOWLEDGE: Following the proposal of a reduced eye dose limit, this article provides new measurement data on staff eye doses for PET/CT workers.

Br J Radiol. 2014 Oct;87(1042):20140373