论文部分内容阅读
目的 比较跟骨单能X线 (SXA)测定值和腰椎定量CT(QCT)测定值的相关性 ,旨在为临床上合理地应用跟骨SXA测定仪。方法 应用单能X线和定量CT骨密度测定仪测量了 2 0 1例正常或病人的跟骨及椎体骨密度 ,对测量结果进性了统计学相关性分析。结果 男女人群SXA和QCT的总相关系数分别为 0 6 5 3和 0 6 38;P <0 0 0 1。骨质疏松组SXA与QCT的测定值有非常显著的相关性 (P <0 0 0 1) ,骨量正常组和骨量减少组则无显著的相关性 (P >0 0 5 )。从年龄上 40岁以上女性与 6 0岁以上男性SXA与QCT的测定值有非常显著的相关性。结论 SXA测定不能代替QCT测定 ,但SXA机型小、轻便且价廉 ,尤其在 40岁以上的女性和在 6 0岁以上的老年男性 ,以及患有面骨质疏松的病人 ,他们的测量结果与QCT有着显著的相关性 ,故在临床上不失为诊断绝经后妇女和老年性骨质疏松的一种手段
Objective To compare the correlation between single X-ray (SXA) measurements and lumbar quantitative CT (QCT) measurements, aiming to provide a clinically appropriate calcaneus SXA analyzer. Methods The bone mineral density (BMD) of calcaneal and vertebral bodies in 210 normal or patients were measured by single energy X-ray and quantitative CT bone mineral density meter. Statistical analysis of the results was made. Results The total correlation coefficients of SXA and QCT in male and female were 0 6 53 and 0 6 38, respectively; P 0 001. There was a significant correlation between SXA and QCT in osteoporosis group (P <0.01). There was no significant correlation between SXA and osteopenia in osteoporosis group (P> 0.05). There was a very significant correlation between SXA and QCT values in women over the age of 40 and in men over the age of 60. Conclusions The SXA test does not replace the QCT test, but the SXA model is small, lightweight and inexpensive, especially in women over the age of 40 and older men over the age of 60, and in patients with osteoporosis And QCT has a significant correlation, it is clinically a diagnostic tool for postmenopausal women and senile osteoporosis