Ces radiol. 2007, 61(1):80-84
Radiation dose to the hands of nuclear medicine staff preparing radiopharmaceuticals with gamma emitters including positron radionuclide 18FReview article
- 1 Klinika nukleární medicíny LF UP a FN, Olomouc
- 2 Oddělení lékařské fyziky a radiační ochrany FN, Olomouc
- 3 Státní úřad pro jadernou bezpečnost, Praha
Review of literature dealing with radiation dose to the hands of radiopharmaceutical staff published from 1975 till 2006 is discussed. Position of thermoluminescence dosimeters is considered either at finger tips (position A) or at the proximal ring finger (position B) during 99Mo-99mTc generators elution, preparation of radiopharmaceuticals, activity measurements and dosing but not during administration to the patients. Personal dose equivalent Hp(0,07) in 1 cm2 is measured in position A, personal dose equivalent for hands in position B. During the preparation of 99mTc, finger tip dose (position A) ranging from 1.2-1.9 mSv/10 GBq without protective devices and from 0.18-1.3 mSv/10 GBq with protective devices was published in the literature between 1975 and 1990. During the manipulation with 18F, finger tip dose (position A) ranged from 0.9-5.8 mSv/10 GBq (mean 3.5 mSv/10 GBq). Between 2000-2005, mean annual hand dose (position B) ranged from 17.5-91 mSv (mean 43.8 mSv) without PET, and from 25-184 mSv (mean 121 mSv) with PET, respectively. Routinely, dose to the hands does not exceed 500 mSv/year. In case of skin dose this is not sure since this parameter is not routinely measured and a risk of superficial contamination exists.
Keywords: radiation dose, nuclear medicine, dosimeters, radiation limits, PET, radiopharmaceuticals
Accepted: July 25, 2006; Published: March 1, 2007 Show citation
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