[KongchangAI]
Unverified80% confidenceTradeoffTime unknown

精度更高的DXA检测辐射剂量约为1-6微西弗(远低于一次胸片),安全性其实可控,但对无适应症的健康儿童做DXA仍属不必要暴露,权衡时应以'是否有临床指征'而非'辐射量小'为决策依据

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