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Title

RADIATION EXPOSURE OF THE SURGEONS IN SENTINEL LYMPH NODE BIOPSY

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 Start Page 53 | End Page 57

Abstract

 Background: Sentinel node biopsy (SLNB) is the standard of care for breast cancer treatment and it is getting wide acceptance in Iran. The radiation safety of the procedure has been investigated under controlled conditions, but the standard dose of RADIOTRACER and techniques are not always observed in the community setting. The aim of this study was to assess the magnitude of the absorbed doses of radiation to the hands of operating surgeons.Materials and Methods: Twenty consecutive SLNB procedures were studied. RADIATION DOSE to the hands of the surgeons was measured by placing lithium fluoride thermoluminescent dosimeters (TLDs) in the surgeons' glove. The RADIATION DOSE to the abdomen and thyroid area was measured by placing TLDs at these areas. The injected dose of RADIOTRACER, the time interval to the surgery and the duration of the surgery were recorded.Results: The injected dose of RADIOTRACER ranged from 0.1 to 5 mCi. The highest absorbed dose was recorded by TLD, placed on the non-dominant hand third finger (189.1 mSv). Mean recorded doses were higher for non-dominant hand second finger (53.49 ± 24.60 mSv). The measured absorbed doses for the abdominal and thyroid area were lower than those for the fingers.Conclusion: This study has confirmed the procedure safety, even with high dose of RADIOTRACER. Nevertheless, it is advisable to use the lowest dose of the RADIOTRACER to avoid the waste of resources.

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