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目的通过比较正常组和骨质疏松组跟骨骨密度，探讨老年性骨质疏松的诊断价值。方法用ＬＵＮＡＲＡｃｈｉｌｅｓ系统对４０６名日本正常老年人群和３１５名老年性骨质疏松患者进行跟骨骨密度测定。结果老年性骨质疏松患者ＢＵＡ、ＳＯＳ和ＳＩ明显低于正常老年人群（Ｐ＜０．０１），正常老年人群中女性的超声波测量值明显低于男性（Ｐ＜０．０５）。结论超声波法测量跟骨骨密度可以很好地将骨质疏松患者从正常人群中区别开来。
Objective To compare the bone mineral density (BMD) between the normal group and osteoporosis group in the diagnosis of senile osteoporosis. Methods Calcaneal bone mineral density (BMD) was measured in 406 Japanese normal elderly population and 315 senile osteoporosis patients by LUNARAchiles system. Results The levels of BUA, SOS and SI in senile osteoporosis patients were significantly lower than those in the elderly (P <0.01). The ultrasound measurements of women in the elderly were significantly lower than those in men (P <0.05). Conclusion Ultrasound measurement of calcaneal bone mineral density can be very good osteoporosis patients from the normal population to distinguish.