Occupational exposure in a PET/CT facility using two different automatic infusion systems |
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| Affiliation: | 1. State Research Institute Center for Physical Sciences and Technology (FTMC), Savanorių Ave. 231, 02300 Vilnius, Lithuania;2. Department of Radiology, Nuclear Medicine and Medical Physics, Faculty of Medicine, Vilnius University, Santariškių st. 2, 08661 Vilnius, Lithuania;1. Department of Radiation Oncology, Tohoku University Graduate School of Medicine, Sendai, Japan;2. Department of Radiotherapy, Tokyo Metropolitan Cancer and Infectious Diseases Center Komagome Hospital, Tokyo, Japan;3. Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan;4. Department of Radiation Oncology, Yamagata University Faculty of Medicine, Yamagata, Japan;5. Department of Radiation Oncology, Iwate Medical University School of Medicine, Iwate, Japan;6. Department of Radiology, Japanese Red Cross Ishinomaki Hospital, Ishinomaki, Japan;7. Radiation Technology, Tohoku University Hospital, Sendai, Japan;8. Department of Radiological Technology, School of Health Sciences, Faculty of Medicine, Tohoku University, Sendai, Japan;1. Medical Physics, San Raffaele Hospital Scientific Institute, Milan, Italy;2. Radiotherapy, San Raffaele Hospital Scientific Institute, Milan, Italy;1. Radiation Physics Section, Biomedical Physics Department, King Faisal Specialist Hospital & Research Centre, Riyadh, Kingdom of Saudi Arabia;2. Cyclotron and Radiopharmaceuticals Department, King Faisal Specialist Hospital & Research Centre, Riyadh, Kingdom of Saudi Arabia;3. Radiation Biology Section, Biomedical Physics Department, King Faisal Specialist Hospital & Research Centre, Riyadh, Kingdom of Saudi Arabia;4. Oncology Centre, King Faisal Specialist Hospital & Research Centre, Riyadh, Kingdom of Saudi Arabia;5. Medical Physics Unit, McGill University, Montréal, Québec, Canada;6. Department of Oncology, Faculty of Medicine, McGill University, Montréal, Québec, Canada;7. Department of Radiation Oncology, Jewish General Hospital, Montréal, Québec, Canada;1. Division of Abdominal Imaging and Intervention, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts;2. Department of Radiology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts;3. Department of Health Physics, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts |
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| Abstract: | ![]()
PurposeThe aim of this study was to measure the occupational exposure using active personal dosimeters (APD) in the PET/CT department at different stages of the operation chain i.e. radiopharmaceutical arrival, activity preparation, dispensing, injection, patient positioning, discharge and compare the radiation exposure doses received using two automatic injection/infusion systems. This paper also reflects optimization processes that were performed to reduce occupational exposure.MethodsMeasured APD data were analysed for medical physicists, radiology technologists and administrative staff from 2014 till 2018. For dispensing and injecting 18F-FDG, the automatic infusion/injection system IRIDE (Comecer, Italy) or the automatic fractionator ALTHEA (Comecer, Italy) with wireless injection system WIS (Comecer, Italy) were used. Radiation exposure optimization methods were applied during the data collection period (installation of the transport port, patient management, APD alarm threshold and etc.).ResultsRadiology technologists who perform injection procedures, regardless of the automatic infusion system, received the highest radiation exposure dose. The average doses to the radiology technologists per one study were 1.72 ± 0.33 μSv and 1.16 ± 0.11 μSv with ALTHEA/WIS and IRIDE system, respectively. The average dose for accompanying the patient to the PET/CT scanner and scan procedure was 0.52 ± 0.07 μSv. For the medical physicists, the average dose was 0.29 ± 0.09 µSv. The measured dose for administrative staff was 0.30 ± 0.15 μSv.ConclusionsOccupational exposure can be effectively optimized by different means including staff monitoring with APD, implementation of radiation safety culture and the usage of automatic infusion systems. |
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| Keywords: | Occupational exposure Radionuclide activity meter Nuclear medicine Infusion system Radiation protection PET/CT 18F-FDG |
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