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目的评估五种临床介入程序中,职业人员眼晶状体所受辐射剂量水平。方法选择四家医院进行五种介入程序实验,将光致发光剂量计(OSL,材料Al2O3:C)分别佩戴在介入职业人员的眼睛附近,记录治疗过程中透视时间、累积剂量和剂量面积乘积(DAP,Dose-Areas Product)等参数,测量用所得的个人剂量当量Hp(0.07)值估算不同程序治疗过程中不同术者的左眼,右眼以及两眼中间的眼晶状体剂量,并与治疗过程的记录值做统计学分析。结果统计计算介入职业人员眼晶状体剂量,五种介入程序-冠状动脉造影(CA,Coronary Angiography)、冠状动脉成形术+植入术(PTCA+PCI,Percutaneous Transluminal Coronary Angioplasty and Percutaneous Coronary Intervention)、脑动脉瘤、心脏起搏器、心脏射频消融,年平均当量剂量分别为15.12、11.59、8.64、36.10、12.78 m Sv。其中操作者在做起搏器治疗时眼晶状体受辐射剂量最高。结论职业人员在起搏器治疗时所受剂量超过国际放射防护委员会(ICRP)最新推荐的眼晶状体剂量限值(20 m Sv)。同时通过统计学分析得,不同的治疗类型、透视时间、累积剂量、DAP,职业人员的眼晶状体剂量也不同。因此,介入职业人员应尽量减少操作时间,加强对眼晶状体的防护。
Objective To assess the radiation dose levels of the lens of the occupational eye in five clinical interventional procedures. Methods Four interventional procedures were selected in four hospitals. The photoluminescence dosimeters (OSL, Al2O3: C) were worn near the eyes of the occupational personnel, and the time of treatment, the cumulative dose and the dose area product DAP and Dose-Areas Product, etc. The dose of the individual dose equivalent Hp (0.07) was measured to estimate the dose of the lens in the left eye, the right eye and the middle of both eyes in different procedures during the treatment of different procedures and was compared with the treatment course The value of the record to do statistical analysis. Results Statistical analysis of the occupational ocular lens dose, five interventional procedures - CA, Coronary Angiography, Percutaneous Transluminal Coronary Angioplasty and Percutaneous Coronary Intervention (PTCA + PCI), cerebral artery Tumor, pacemaker, cardiac radiofrequency ablation, the average annual equivalent dose were 15.12,11.59,8.64,36.10,12.78 m Sv. Among them, the operator in the pacemaker treatment of the lens by the radiation dose the highest. CONCLUSIONS Occupational exposure to pacemakers exceeds the ICRC recommended lens dose limit (20 m Sv). At the same time through statistical analysis, different types of treatment, fluoroscopy time, cumulative dose, DAP, occupational eye lens dose is also different. Therefore, interventional professionals should minimize operating time and strengthen the lens of the eye protection.