Abstract:
Objective This study aims to assess the level of radiation exposure of 125I seed implantation operators.
Methods Using thermoluminescent dosimeters for dose measurement, the radiation exposures of eye lens, operating hands, and thyroid of CT guider, ultrasound guider, and125I implanting operator were measured when 125I seeds were implanted.The equivalent dose to the eye lens, operating hands, and thyroid was estimated.
Results No significant differences in the annual equivalent dose of the eye lens, operating hands, and thyroid were found among the three operators.It did not exceed the limit of the Protection against Ionizing Radiation and the Safety of Radiation Sources basic standard(GB-18871-2002).
Conclusion The eye lens of operators involved in 125I seed implantation will receive an equivalent dose of less than 20 mSv, as recommended by the ICRP under the condition provided by our study.The operating hands of the operators involved in 125I seed implantation will receive the recommended equivalent dose of less than 500 mSv.
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