使用超声波无线电频率信号量化评估肌肉质量和数量
Lan Zeng1, Li Zhang1, Jinhua Shao2
1Department of Ultrasound, Peking University Third Hospital, 49 North Garden Rd., Haidian District, Beijing, 100191, China.
Journal of orthopaedic surgery and research
|October 22, 2025
概括
来自射频 (RF) 信号的定量超声波 (QUS) 参数有效地评估肌肉质量和数量. 这些非侵入性超声波测量显示出评估骨肌密度 (SMD) 和骨肌指数 (SMI) 的前景.
科学领域:
- 肌肉骨超声波 肌肉骨超声波
- 医疗成像医学成像
- 生物物理学的生物物理.
背景情况:
- 准确评估肌肉质量和数量对于诊断和管理各种健康状况至关重要.
- 目前的黄金标准方法,如计算机断层扫描 (CT) 是侵入性的和昂贵的.
- 需要使用非侵入性,可靠的方法来评估肌肉健康.
研究的目的:
- 调查从射频 (RF) 信号中获得的定量超声波 (QUS) 参数的实用性.
- 评估这些QUS参数在评估肌肉质量 (骨肌肉密度 - SMD) 和肌肉数量 (骨肌肉指数 - SMI) 的有效性.
- 建立QUS作为肌肉评估的潜在非侵入性替代方案.
主要方法:
- 预期招收200名住院患者 (平均年龄为59.11岁).
- 骨肌密度 (SMD) 和骨肌指数 (SMI) 用CT作为黄金标准来测量.
- 用超声波测量副脊髓肌肉 (PSM) 厚度;为QUS参数提取记录RF信号.
- 后勤回归和ROC曲线分析用于识别预测因素和评估诊断性能.
主要成果:
- 基于RF信号的特定QUS参数 (MusQBOX.NNM(C),MusQBOX.NNM(L),MusQBOX.Nα(C),MusQBOX.NK(L)) 是低SMD的独立预测因素 (P<0.05).
- PSM厚度和MusQBOX.NMI(L) 是低SMI的独立预测因素 (P <0.05).
- 综合QUS参数显示了低SMD的高诊断效率 (AUC:0.899).
- 结合PSM厚度和MusQBOX.NMI(L) 对低SMI (AUC:0.779) 显示出中度的疗效.
结论:
- 从脊肌的射频信号中获得的定量超声波参数对于评估低骨肌密度 (SMD) 和低骨肌指数 (SMI) 有效.
- 这些QUS参数为评估肌肉质量和数量提供了一个有希望的非侵入性替代方案.
- 这种方法可以通过提供可访问的肌肉健康评估,显著影响临床实践.
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