2009—2011年在介入诊疗中患者受照剂量的调查

Investigation of radiation dose of patients during therapeutic interventional procedure from 2009-2011

目的通过对不同年份介入治疗过程中不同患者所受辐射剂量的分析,探讨影响辐射剂量的主要因素。方法应用热释光测量法,对不同疾病患者体表受照剂量进行测量、统计分析。结果介入操作中,患者受照剂量差别很大,受多种因素(设备性能、病种、手术复杂程度、术者的操作技术等)影响。平均体表剂量中肝癌患者后背正中最高,为(142.92±75.56)mGy,其次为肿瘤患者。个体受照剂量最高为1 097.00 mGy,为骶尾部脊索瘤患者。2011年患者受照剂量较2009年呈不同程度的上升。结论应采取各种有效措施使患者的受照剂量合理降低,特别是主动防护。

[Objective]To investigate the radiation dose of patients during therapeutic interventional procedures,and analyze the main factors which influence radiation dosage.[Methods]Theromoluminescence was used to measure and analyze the X-ray radiation dose at different positions of patients in therapeutic interventional procedures.[Results] The difference of radiation dose were significant during therapeutic interventional procedures due to a variety of factors（equipment performance,type of disease,surgical complexity,the surgeon,operating techniques,etc）.The highest average dose of skin in interventional procedures was the middle of back in patients with hepatocellular carcinoma（142.92±75.56） mGy,follwed by tumor patients.The highest individual dose of skin was 1 097.00 mGy.It is the chordoma in sacrococcygeal region.The radiation dose of patients in 2011 was higher than that in 2009.[Conclusion]It is necessary to reduce radiation dose by adopting effective measures,especially active protection..