双能X线骨密度仪计量检定参数及分析  

Analysis on metrological verification parameters and methods for dualenergy X-ray absorptiometry

作　　者：井赛[1] 孙旭[1] 吴洋[1] 张拓[1] 江玉柱[1] 

机构地区：[1]济南军区联勤部药品仪器检验所,济南250022

出　　处：《医疗卫生装备》2017年第8期94-96,共3页Chinese Medical Equipment Journal

基　　金：2012年度军事医学计量专项课题(2012-JL1-003)

摘　　要：目的 :分析双能X线骨密度仪的计量检定参数及检定方法,以更好地开展其量值溯源。方法 :从双能X线吸收法和硬件结构2个方面剖析双能X线骨密度仪的原理,采用理论与规程相结合的方法,重点对检定规程中涉及的测量准确度、重复性和辐射防护性能参数的检定方法及数据处理进行阐述,同时对相关参数进行进一步的理论分析。结果:对双能X线骨密度仪的计量检定参数从原理结构和检测方法结合上进行了理论分析。结论:双能X线骨密度仪的计量检定参数及检定方法的掌握和应用,有助于正确开展计量检定,提高检定工作质量。Objective To analyze the metrological verification parameters and methods for dual-energy X-ray absorptiometry（DEXA） to facilitate magnitude traceability. Methods DEXA′s principle was discussed from the aspects of dual-energy X-ray absorption method and hardware structure. The method combining corresponding theory and specifications was used to describe the measurement accuracy and repeatability as well as the verification method and data processing for radiation protection performance parameters. Theoretical analysis was executed on corresponding parameters. Results Theoretical analysis was carried out on the metrological verification parameters of DEXA from the aspects of principle structure and measuring method. Conclusion It′ s of great significance for enhancing DEXA metrological verification to master the metrological verification parameters and methods.

关 键 词：双能 X线 骨密度仪 计量检定 准确度 重复性 辐射防护 

分 类 号：TH781[机械工程—仪器科学与技术]