| 彭建亮,娄云,冯泽臣,万玲,王树华,周海伟,王新明.3种介入术中工作人员的辐射剂量水平分析[J].中华放射医学与防护杂志,2011,31(4):395-397 |
| 3种介入术中工作人员的辐射剂量水平分析 |
| Evaluation of radiation dose to working operator in three types of interventional fluoroscopic procedures |
| 投稿时间：2011-05-09 |
| DOI：10.3760/cma.j.issn.0254-5098.2011.04.005 |
| 中文关键词: 介入放射学 眼晶状体当量剂量 有效剂量 辐射防护 |
| 英文关键词:Interventional radiology Eye lens dose equivalent Effective dose Radiation protection |
| 基金项目:国家科技支撑计划(2006BAI06B03) |
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| 中文摘要: |
| 目的 分析和评价临床实施较多的3种典型介入术中,工作人员的辐射剂量水平。方法 用仿真模体模拟实际诊疗情况,用热释光(TLD)元件作为测量工具,检测X射线机旁有/无防护组合时介入工作者眼晶状体、颈部及胸部的辐射剂量水平,估算其眼晶状体当量剂量和有效剂量。 结果 X射线机旁有防护设施条件下,头部受照剂量减少85%~90%。脑血管介入术第一手术者眼晶状体当量剂量高于心血管和外周血管介入术,外周血管介入术第一手术者年有效剂量低于脑血管和心血管介入术。结论 介入工作者在本研究中使用的防护措施及适当的工作强度下,年有效剂量不会超过20 mSv的限值,但眼晶状体当量剂量可能会超过ICRP最新推荐的眼晶状体剂量限值(20 mSv),介入工作者应重视对眼晶状体的防护。 |
| 英文摘要: |
| Objective To assess the level of radiation exposures of operators in three typical types of interventional fluoroscopic procedures. Methods Alderson Radiation Therapy (ART) phantom was used to stimulate the practices of diagnosis and therapy using TLDs for dose measurement. The radiation exposures of eye lens, neck, and breast were measured when the lead shielding of machine was on/off and the equivalent dose and effective dose to the eye lens were estimated. Results Radiation exposure of head was obviously reduced by 85%-90% when the lead shielding was on. The doses in different procedures were different. In cerebral angiography the dose equivalent of eye len was the highest in the three procedures. The annual effective dose for the operators was smaller in peripheral vascular interventions than that in cardiovascular interventional therapy and that in cerebral angiography. Conclusions The operators involved in intervention will receive an annual effective dose of less than 20 mSv as recommended by the ICRP under the protection conditions provided by the current study, except for eye lens. Attention should be paid to the protection of the eyes of operators. |
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