Unverified82% confidenceDecision RuleTime unknown
选家用筛查仪优先选足跟超声（QUS）机型而非手指式：足跟以松质骨为主、代谢活跃，其骨密度与髋部DXA相关性更好，是国际公认的外周超声筛查首选部位；手指式便携但相关性和临床价值较低
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Unverified手指(指骨)超声检测设备便携性最好但精度和临床相关性最差，跟骨检测在超声类中与DXA相关性相对最高；预算允许时优先跟骨型而非手指型86% similarUnverified跟骨（脚跟）检测比手腕/手指检测更接近承重骨状态，与髋部DXA相关性更高，家用筛查优先选跟骨式设备85% similarUnverified足跟是外周超声骨密度检测中与中轴骨（髋部/脊柱）DXA结果相关性较好的部位，优于手指和桡骨超声82% similarUnverified支持前臂桡骨、胫骨、指骨等多部位检测，相比只能测跟骨的超声设备适用人群更广（如行动不便无法脱鞋袜的老人）79% similarUnverified指夹式（透射式）精度高、成本低但无法运动中佩戴；腕带式（反射式）可连续运动监测但静息精度略低于指夹。要临床级精度选指夹，要运动趋势监测选腕带，两者不可互相替代75% similar
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