Vijitha Ramanathan, S P Gamage, Uiu Karunathilaka, Wmis Wickramasinghe, Ranga Tudugala
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because it may surpass the maximum permissible dose of 500 mSv. This study aimed
to assess the occupational nger dose received by technologists during the preparation
and administration of 18F-FDG radiopharmaceuticals in PET-CT whole-body scan
procedures. Fifty scans were selected, with one procedure excluded due to a high
administered activity. The mean administered activity per scan was 207.2 41.8 MBq,
with preparation and administration times averaging 1.44 1.30 minutes and 0.46 
0.31 minutes, respectively. The technologist's mean total nger dose received during
preparation and administration was 253.5 153.3 Sv per procedure. A signi cant
positive correlation was found between the administered activity and occupational
dose, with patient's body mass index, preparation time, and administration time also
contributing to dose variation. Based on 703 PET-CT procedures conducted in 2022,
the estimated occupational nger dose for a technologist was 178.2 mSv annually. This
value is well below the ICRP's maximum permissible dose of 500 mSv. The ndings
of this study have a signi cant impact on extremity dosimetry in nuclear medicine in
Sri Lanka, as this is the rst study of its kind.</p>","PeriodicalId":50068,"journal":{"name":"Journal of Radiological Protection","volume":" ","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Radiological Protection","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1088/1361-6498/ad9f72","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Extremity radiation exposure in nuclear medicine is a growing concern
because it may surpass the maximum permissible dose of 500 mSv. This study aimed
to assess the occupational nger dose received by technologists during the preparation
and administration of 18F-FDG radiopharmaceuticals in PET-CT whole-body scan
procedures. Fifty scans were selected, with one procedure excluded due to a high
administered activity. The mean administered activity per scan was 207.2 41.8 MBq,
with preparation and administration times averaging 1.44 1.30 minutes and 0.46
0.31 minutes, respectively. The technologist's mean total nger dose received during
preparation and administration was 253.5 153.3 Sv per procedure. A signi cant
positive correlation was found between the administered activity and occupational
dose, with patient's body mass index, preparation time, and administration time also
contributing to dose variation. Based on 703 PET-CT procedures conducted in 2022,
the estimated occupational nger dose for a technologist was 178.2 mSv annually. This
value is well below the ICRP's maximum permissible dose of 500 mSv. The ndings
of this study have a signi cant impact on extremity dosimetry in nuclear medicine in
Sri Lanka, as this is the rst study of its kind.
期刊介绍:
Journal of Radiological Protection publishes articles on all aspects of radiological protection, including non-ionising as well as ionising radiations. Fields of interest range from research, development and theory to operational matters, education and training. The very wide spectrum of its topics includes: dosimetry, instrument development, specialized measuring techniques, epidemiology, biological effects (in vivo and in vitro) and risk and environmental impact assessments.
The journal encourages publication of data and code as well as results.