目的：探讨跟骨定量超声(QUS)的临床价值。

Objective: To explore the clinical value of quantitative calcaneus ultrasound (QUS).

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目的探讨跟骨定量超声在诊断老年性骨质疏松症中的可行性及T值和Z值在诊断中的意义。

Objective Observe the effect and significance of quantitative ultrasound and T-score, Z-score on the diagnosis of osteoporosis.

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结论：跟骨定量超声bua测值减低可反映早期RA骨量丢失的程度及评价疾病的活动性。

Conclusion: BUA could reflect bone loss degree and evaluate disease activity in early RA patients.

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