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Radiation Protection Dosimetry Advance Access published online on September 20, 2006
Radiation Protection Dosimetry, doi:10.1093/rpd/ncl141
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Published by Oxford University Press (2006).
Received April 4, 2006
Revised June 13, 2006
Accepted August 18, 2006

SCIENTIFIC NOTE

DOSES TO NUCLEAR TECHNICIANS IN A DEDICATED PET/CT CENTRE UTILISING 18F FLUORODEOXYGLUCOSE (FDG)

T. Seierstad 1, E. Stranden 1 *, K. Bjering 2, M. Evensen 1, A. Holt 1, H. M. Michalsen 1, and O. Wetteland 1

1 Buskerud University College, Faculty of Health, Konggate 51, N-3019 Drammen, Norway
2 Department of Nuclear Medicine Rikshospitalet-Radiumhospitalet HF, Montebello, N-0310 Oslo, Norway

* To whom correspondence should be addressed.
E. Stranden, E-mail: erling.stranden{at}hibu.no


  Abstract

The first dedicated PET/CT centre in Norway was established at the Norwegian Radiumhospital in Oslo in 2005. Knowing that the introductions of PET-isotopes in nuclear medicine give increased occupational radiation dose to the technicians, a study was carried out in order to map the doses to staff members during different working operations and to see if any dose reducing measures were needed. The results of the study are in good agreement with other studies, and a technician dose of 20--25 nSv per injected MBq of 18F seems to be representative for such centres. For an average injected activity of 350 MBq per patient, the dose limit is reached after handling around 3000 patients annually. For an annual number of less than 500 patients at the centre and rotation of the staff, an annual individual dose for the technicians would realistically be less than 2--3 mSv. Even a major increase in the number of patients will not result in individual doses near the ICRP dose limit.


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