The aim of this work was to assess the occupational dose received by an interventional radiologist (IR) during computed tomography fluoroscopy (CTF)-guided procedures; to identify the most exposed areas of the body including the hands and fingers; to suggest recommendations for individual monitoring; and to improve radiation safety of the practice. A total of 53 CTF-guided procedures were studied. Twelve whole-body dosimeters were worn by the IR in each procedure for the assessment of the personal dose equivalent, Hp(10), on the chest, waist, and back, both over and under the lead apron, as well as the personal dose equivalent, Hp(0.07), on both arms, knees, and feet. Special gloves with casings to fit extremity dosimeters were prepared to assess Hp(0.07) to the fingers. The measured chest dose values were higher than those on the waist and back; the dominant hand or the left side was the most exposed. In general, the ring, middle, and index fingers of the dominant hand were the most exposed (maximum in the 36-39 mSv range), while wrist dose was negligible compared to finger doses. Based on the results obtained the following recommendations are suggested: protective devices (lead aprons, thyroid shield, and goggles) should be worn; Hp(10) should be assessed at the chest level both above and below the lead apron; finger doses can be measured on the basis of each middle finger; the arm closer to the beam should be monitored; and finally, a wrist dosimeter will not provide useful information.

中文翻译：

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在CTF指导的过程中向放射线放射科医生剂量。

这项工作的目的是评估在计算机断层摄影X线透视（CTF）指导下的过程中，介入放射科医生（IR）接受的职业剂量；确定身体最裸露的区域，包括手和手指；为个人监测提出建议；并提高了辐射安全的做法。共研究了53个CTF指导的程序。在每个程序中，IR都要佩戴十二个全身剂量计，以评估铅围裙上方和下方的胸部，腰部和背部的个人剂量当量Hp（10）以及个人剂量手臂，膝盖和脚的等效值Hp（0.07）。准备了带有适合末端剂量计的外壳的特殊手套，以评估手指的Hp（0.07）。测量的胸部剂量值高于腰部和背部；优势手或左侧最暴露。通常，优势手的无名指，中指和食指暴露最多（最大在36-39 mSv范围内），而手腕剂量与手指剂量相比可忽略不计。根据获得的结果，建议以下建议：应穿戴防护装置（铅围裙，甲状腺防护罩和护目镜）；在铅围裙上方和下方的胸部水平应评估Hp（10）；手指的剂量可以根据每个中指进行测量；靠近光束的手臂应受到监控；最后，腕部剂量计将无法提供有用的信息。而手腕剂量与手指剂量相比可忽略不计。根据获得的结果，建议以下建议：应穿戴防护装置（铅围裙，甲状腺防护罩和护目镜）；在铅围裙上方和下方的胸部水平应评估Hp（10）；手指的剂量可以根据每个中指进行测量；靠近光束的手臂应受到监控；最后，腕部剂量计将无法提供有用的信息。而手腕剂量与手指剂量相比可忽略不计。根据获得的结果，建议以下建议：应穿戴防护装置（铅围裙，甲状腺防护罩和护目镜）；在铅围裙上方和下方的胸部水平应评估Hp（10）；手指的剂量可以根据每个中指进行测量；靠近光束的手臂应受到监控；最后，腕部剂量计将无法提供有用的信息。