DSA冠脉造影致医护人员辐射剂量的研究

The Study of Radiation Dose for Doctor-Nurse in DSA Coronary Angiography

目的研究放射介入医生在进行DSA冠状动脉造影术时,医生各层面皮肤表面的吸收剂量,并对介入手术过程中的辐射剂量进行分析,为介入工作人员实行介入手术时,在防护问题方面,提供一些指导性的建议。方法根据冠脉造影时的曝光条件,使用DSA设备对带有热释光剂量计的仿真人体模型进行曝光,再根据已经制作好的标准曲线,使用BR2000D,对医护人员(第一术者和第二术者)各高度层面铅衣前/后的皮肤表面吸收剂量进行测量,并使用SPSS17.0软件进行统计学分析。结果第一术者眼晶状体、甲状腺、乳腺和性层面腺吸收剂量分别为0.261、0.301、0.226和0.243 mGy,第二术者眼晶状体、甲状腺、乳腺和性腺吸收剂量分别为0.275、0.303、0.309和0.328 mGy。结论在进行冠状动脉造影术时,第一术者在移动式铅屏风的作用下,乳腺和性腺层面范围内的皮肤表面吸收剂量明显低于第二术者,眼晶状体和甲状腺层面范围与第二术者无显著性差异。另外,对介入医生来说,第一术者的防护情况的关注度一般很高,对第二术者防护措施更应该得到加强。

Objective To study the skin surface absorbed dose the interventional radiology physicians performing coronary angiography DSA, for and the interventional surgical procedure to analyze the radiation dose for the staff involved in the implementation of interventional surgery, and to provide some guiding suggestions for protection issues. Methods According to coronary angiography exposure conditions, Simulation phantoms equipped with thermoluminescent and dosimeters （TLD） were exposed by the DSA device in the condition same as the coronary angiography procedure, according to a standard mcarked curve, to measure the absorbed dose using BR20OOD, of the high cayers the medical staff （first and second surgeon to surgeon） the absorbed dose of statistical analysis was performed using SPSS17.0 software. Results During coronary angiography, the first surgeon＇ s eye lens, thyroid breast and gonad levels range are 0. 261,0. 301,0. 226 and 0. 243mGy, but these are 0. 275, 0. 303,0.309 和 0. 328mGy for the second surgery. Conclusion In the mobile under the action of lead screens, the skin surface absorbed dose of breast and gonad levels was significantly lower than those of the second surgeon, the range of the eye lens and thyroid levels of the a second surgery had no significant difference. In addition, interventional cardiologists, the first surgeon protective state is generally high degree of concern, for the second surgeon , protective measures should be strengthened further.