Radiation protection issues in PET/CT have been addressed adequately with significant progress being made in reducing occupational radiation doses in PET/CT facilities. Applied measurement techniques and variation in work practices increase the variations in published data. Other factors such as; experience level of staff, type of PET scanner (e.g.new Time Of Flight technology), work practice, administered activity, procedure used for dispensing and administering 18F-FDG patient doses (e.g.

Abstract:
 The number of installed PET/CT scanners is increasing and this will increase the workload which would result in higher extremity radiation dose. Thus, an effort should be made to review the recent practice of radiation protection in PET/CT imaging in order to reduce the extremity radiation dose.

Abstract
Accurate dose rate estimates is important for radiation protection specialists conducting risk assessments and performing dose reconstruction in cases of accidental exposures.
 
Objectives: The objectives of this work was to experimentally evaluate the bladder voiding factor effect on the dose rate measured from patients undergoing  PET/CT imaging studies using  18F-FDG by directly measuring the dose rate immediately before and after voiding, and compare the results with the current scientific literature.
 

The number of installed PET/CT scanners is increasing leading to an increased workload which could result in higher radiation dose received by nuclear medicine workers responsible for conducting the imaging studies in clinical environment. An effort should be made to further optimize the current dose reduction methods employed to achieve "as low as reasonably achievable" (ALARA) levels. The aim of this work is to provide an overview of the recent techniques used to reduce the occupational radiation doses in PET/CT practice.