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目的了解介入治疗过程中放射工作人员所受辐射剂量水平,探讨影响辐射剂量的因素及其减低剂量的途径和方法。方法选择河北省4家省级三甲医院的放射工作人员56人,应用热释光测量法,对不同放射工作人员,不同部位受照体表剂量进行统计分析。结果平均体表受照剂量中,手背部最高,为317.86μGy,其次为甲状腺部位,为233.15μGy。个体受照剂量最高部位为骶尾部脊索瘤栓塞术术者的手部,为3 122μGy。不同手术类型中,肿瘤栓塞术致放射工作人员受照剂量明显高于其他手术。上球管较下球管使放射工作人员受照剂量高。结论介入操作中,放射工作人员受照剂量差别很大,受手术类型、手术复杂程度、术者的操作技术等多种因素影响,因此,应采取有效防护措施使其受照剂量合理降低,特别是主动防护。
Objective To understand the radiation dose level of radiation workers during the interventional therapy and to explore the factors influencing the radiation dose and the ways and methods of dose reduction. Methods Fifty-six radiologists in 4 provincial-level top three hospitals in Hebei Province were selected. The dosimeters of different doses of radiation workers and different parts were statistically analyzed with the method of thermoluminescence. Results The average body surface dose, the back of the hand was the highest, 317.86μGy, followed by the thyroid site was 233.15μGy. Individual exposure to the highest dose of the site of sacrococcygeal chordoma embolization of the hand, 3 122μGy. In different types of surgery, tumor embolization caused radiation dose of staff was significantly higher than other operations. Lower tube on the tube to the radiation staff radiation dose. Conclusion In the interventional operation, the dose of radiation workers varies greatly depending on various factors such as the type of operation, the complexity of the operation and the operation technique of the surgeon. Therefore, effective protective measures should be taken to reasonably reduce the dose to be irradiated. In particular, Is active protection.