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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 ,而与DXA所测量的腰椎BMD无显著相关性
Objective To investigate the correlation between VQCT and DXA in the diagnosis of osteoporosis. Methods Twenty-two patients, 24 males and 28 females, with an average age of 51 years old, were examined by DXA and VQCT successively, and the correlations of the data obtained were analyzed. Results According to WHO criteria for the diagnosis of osteoporosis by bone mineral density, there were 14 in DXA (hip-DXA), 9 in lumbar DXA (S-DXA), 10 in lumbar VQCT Twenty-three people were diagnosed as osteoporosis, accounting for 28%, 18% and 46% of the total number of patients, respectively. SPSS statistical software for their T scores paired t-test, the results showed S-VQCT test results and F -DXA and S-DXA were significantly different (P <0. 05), S-VQCT and F-DXA was significantly correlated with a correlation coefficient of 0.864 (P <0.05), but not with S-DXA. Conclusions BMD of lumbar spine measured by VQCT was significantly correlated with BMD of hip measured by DXA, but not with BMD measured by DXA