VQCT与DXA测量骨密度的相关性研究  

Correlation Study Between DXA and VQCT Measuring Bone Density

作　　者：黄刚[1] 徐香玖[2] 郭青[2] 任晓苏[2] 

机构地区：[1]兰州医学院,甘肃兰州730000 [2]甘肃省人民医院

出　　处：《实用放射学杂志》2003年第5期440-442,共3页Journal of Practical Radiology

摘　　要：目的　探讨VQCT与DXA测量骨密度诊断骨质疏松症的相关性。方法　 5 2名患者 ,男 2 4例 ,女 2 8例 ,平均年龄 5 1岁 ,先后进行DXA和VQCT检查 ,对所获得的数据进行相关性分析。结果　按照WHO的骨密度测量诊断骨质疏松症标准 ,髋部DXA检查 (F -DXA)中有 14人 ,腰椎DXA检查 (S -DXA)中有 9人 ,腰椎VQCT检查 (S -VQCT)中有 2 3人被诊断为骨质疏松 ,分别占患者总人数的 2 8% ,18%和 46%。用SPSS统计软件对它们的T评分分别做配对的t检验 ,结果显示S -VQCT的检查结果与F -DXA和S -DXA均有显著性差异 (Ρ <0 .0 5 ) ,S -VQCT与F -DXA有显著相关性 ,相关系数为 0 .864 (Ρ <0 .0 5 ) ,而与S -DXA相关性无统计学意义。结论　VQCT所测量的腰椎BMD与DXA所测量的髋部BMD有显著相关性 。Objective To study the correlation of measuring bone density for diagnosing osteoporosis between VQCT and DXA. Methods 50 patients were measured bone density coinstantaneous by DXA and VQCT. All of the data was saved in computer and analyzed by SPSS soft.Results According to WHO criterion 14 patients were osteoporosis by F-DXA and 9 by S-DXA,and 23 by VQCT.The percent was respective 28%,18% and 46%. The results of VQCT were significantly different from the results of F-DXA and S-DXA (Ρ<0.05). But VQCT was correlative(r=0.864,Ρ<0.05)with F-DXA, and not correlative with S-DXA.Conclusion Lumbars BMD measured by VQCT was significantly correlative to femurs BMD measured by DXA, but not correlative to lumbars BMD measured by DXA. So VQCT is probably more sensitive in measuring lumbars BMD than DXA.

关 键 词：VQCT DXA 骨密度 相关性 骨质疏松症 影像学诊断 

分 类 号：R814.42[医药卫生—影像医学与核医学] R681[医药卫生—放射医学]