摘要
利用欧洲腰椎体模对三家公司生产的８台双能Ｘ射线骨密度仪作了测量分析。结果显示，６台仪器间测量结果在同一分析条件下有较好的同一性，ＢＭＤ最大偏差为３％，ＢＭＤ平均偏差为１．０％。两家不同公司生产的两台仪器间测量结果有一定的差异，可达１０％以上。从测定结果所得的校正公式与国际ＤＸＡ标准化委员会所提供的校正公式之间有较好的可比性。
We had a European Spine Phantom (ESP) to be measured at three DXA machines each made by three corporations and six Lunar DPX system DXA machines so as to cross calibrate measuring results. The results have good accordance in six Lunar DPX system machines; but the measuring results showed apparent differences among three corporations′ DXA machines. Cross calibration functions through our results have good accordance with the functions given by International DXA Standardization Committee(IDSC).
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
1999年第5期352-356,共5页
Nuclear Electronics & Detection Technology
基金
国际原子能机构(IAEA)资助
关键词
双能
X射线骨密度仪
欧洲腰椎体模
校正公式
Dual energy X ray bone densitonmetry(DXA) European Spine Phantom (ESP) Bordern determination Cross calibration function
