不断完善的医用X射线摄影诊断指导水平

Continuous Improvement of the Diagnostic Reference Levels for Medical X-Ray Radiography

为不断完善医用X射线诊断的医疗照射指导水平(以下简称“指导水平”)提供参考,综述分析世界各地在不同年代建立的指导水平情况。按成年人和儿童分类,以医用X射线诊断摄影为例,比较分析指导水平的差异及其变化趋势。结果显示不同国家、组织或地区已制订的指导水平的种类及其相应量值不尽相同,特别是在部分发达国家,指导水平的种类日趋增多、剂量参考水平越来越严。这对完善或更新我国医疗照射指导水平具有很高的指导意义。

To provide references for improving the diagnostic reference level (DRL) for medical X-ray diagnostic radi- ography, the recommended dose levels all over the world in different years were reviewed and analyzed. Grouped the examinees/patients into adults and children and taken the medical X-ray diagnostic photography as an example, the ref- erence levels and their trends were compared and analyzed. The results showed that both the types and their values of DRLs varied from different countries, organizations or regions. Especially in some developed countries, the types of DRLs are increasing, and the dose reference levels are getting strict. The findings of this study are useful for improving the DRLs of medical exposure in our country.