骨髓硬化病的弱点的中心模式:全身肌肉MRI的形态相关性
Nathalie Wimmer1, Hans-Peter Müller1, Patrick Metze2
1Department of Neurology, University Hospital Ulm, Ulm, Germany.
Annals of clinical and translational neurology
|February 15, 2024
概括
肌缩侧面硬化症 (ALS) 影响肌肉与直接皮质运动神经元输入最严重. 全身MRI显示ALS患者的特征性肌肉变化,支持其作为诊断生物标志物的使用.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 生物标志物发现发现
背景情况:
- 肌缩侧面硬化症 (ALS) 涉及皮层内化α-摩托神经元的早期和显著退化.
- 肌肉具有最强的直接皮质运动神经输入是临床上最受影响的ALS.
- 需要客观的形态相关性来验证这个概念 in vivo.
研究的目的:
- 用全身MRI在体内研究ALS患者肌肉的形态变化.
- 为了将肌肉变化与皮质运动神经输入的程度相关联.
- 探索基于MRI的肌肉分析作为ALS的诊断工具的潜力.
主要方法:
- 对33名ALS患者和30名健康对照进行了基于迪克森的修改全身MRI.
- 手动标记和分析四肢肌肉,专注于9个肌肉群,具有不同的皮质运动神经输入.
- 量化肌肉体积,脂肪分数和功能剩余肌肉区域 (fRMA).
主要成果:
- 与对照组相比,ALS患者的肌肉体积显著减少,fRMA减少,脂肪分数增加.
- 肌肉有直接的皮质运动神经内置表现出更糟糕的 paresis 和更明显的形态参与.
- 三次对对比表明,肌肉之间fRMA的显著差异与不同的皮质运动神经输入.
结论:
- 全身MRI肌肉分析证实了ALS的特征性形模式.
- 这种定量MRI方法可以对ALS患者的肌肉变化进行参数化和量化.
- 肌肉MRI作为生物标志物具有前景,并可能为ALS的诊断算法做出贡献.
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