Objective To evaluate the diagnostic value of high frequency ultrasound in synovial diseases of the knee joint compared with the results of arthroscopy.

目的通过与关节镜结果检查对照，评价高频超声对膝关节滑膜病变的诊断价值。

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Do when crouching start shipment to move , if rate is too rapid , the frequency is too much , perhaps use erupt force and rebound strong , can hurt knee joint.

做蹲起运动的时候，假如速度太快、次数太多，或者用爆发力和反弹劲儿，就会伤到膝关节。

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Objective to investigate the diagnostic value of high-frequency ultrasound on knee joint diseases of rheumatoid arthritis (ra).

目的探讨高频超声在类风湿性关节炎(RA)膝关节病变中的诊断价值。

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