| Prodigy型骨密度仪测量骨密度的变异系数研究 |
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| 引用本文： | 郭郡浩,杨路昕,赵智明,臧旭丽.Prodigy型骨密度仪测量骨密度的变异系数研究[J].徐州医学院学报,2009,29(6):399-400. |
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| 作者姓名： | 郭郡浩 杨路昕 赵智明 臧旭丽 |
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| 作者单位： | 南京军区南京总医院中西医结合科,江苏,南京,210002 |
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| 摘 要： | 目的分析骨密度仪测量骨密度的变异系数。方法使用双能X线骨密度仪测量标准模块，每日1次，共测量1156次，根据测量结果计算变异系数。结果骨密度仪测量高、中、低骨密度的标准差均为0．001，变异系数依次为0．07％、0．10％、0．20％。结论骨密度分析仪测量骨密度变异系数较低，有较好的稳定性，但其变异系数随着骨密度的降低有增加趋势。
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| 关 键 词： | 骨质疏松 骨密度 双能x线吸收法 变异系数 质量控制 |
Study on coefficient of variation of bone mineral density by Prodigy-DXA measurement |
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| GUO Junhao,YANG Luxin,ZHAO Zhiming,ZANG Xuli.Study on coefficient of variation of bone mineral density by Prodigy-DXA measurement[J].Acta Academiae Medicinae Xuzhou,2009,29(6):399-400. |
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| Authors: | GUO Junhao YANG Luxin ZHAO Zhiming ZANG Xuli |
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| Institution: | ( Department of Integrated Traditional Chinese and Western Medicine, Nanjing General Hospital of Nanjing Military Command, PLA, Nanjing,Jiangsu 210002, China) |
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| Abstract: | Objective To analyze the coefficient of variation （CV） by measurements of bone mineral density with the dual - energy X - ray absorptiometer （ DXA, Prodigy）. Methods A standard calibration module was measured by daily Quality Assurance （n = 1156）, and the value of CV was calculated and analyzed according to the measured data. Results The standard deviation of BMD measurement was 0. 001, in the order of high, middle and low BMD, and the CV was 0.07% , 0. 10% and 0.20% , respectively. Conclusion The DXA measurement of BMDs reveals low CVs, which indicates the satisfactory stability of DXA, while the CVs tend to increase in accordance with the decrease of BMDs. |
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| Keywords: | osteoporosis bone mineral density dual - energy X - ray absorptiometry coefficient of variation quality assurance |
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