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Updated: Jul 27, 2026

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量化磁共振成像测定2型肌性衰竭的腰椎副脊髓肌肉损伤的参数,以及随着年龄的增长而发生的变化

Viktoria Kokosova^1,2, Peter Krkoska^1,2, Daniela Vlazna^1,2,3

¹Department of Neurology, Centre for Neuromuscular Diseases (Associated National Centre in the ERN EURO-NMD), University Hospital Brno, Brno, Czechia.

Frontiers in neurology

|March 6, 2025

概括

定量核磁共振 (qMRI) 揭示了2型肌肉性缩症 (DM2) 患者的腰部肌肉中的脂肪积累,与肌肉强度相关. 然而,qMRI参数不能可靠地跟踪这些患者的疾病进展.

科学领域:

神经学神经学
放射学放射学是一门学科.
肌肉骨成像系统的成像

背景情况:

肌性缩症2型 (DM2) 是一种影响肌肉的遗传性疾病.
肌肉磁共振成像 (MRI) 越来越多地用于诊断和监测肌肉发育不良.
定量MRI (qMRI) 参数提供了对肌肉组成和结构的客观测量.

研究的目的:

在DM2患者中评估腰椎脊肌 (LPM) 的qMRI参数.
评估qMRI发现与功能性肌肉力量之间的关系.
与健康个体相比,研究DM2患者的LPM与年龄相关的变化.

主要方法:

一项横截面研究,将37名DM2患者与35名匹配的健康志愿者 (HV) 相比较.
使用6点迪克森梯度回声序MRI测量LPM和psoas肌肉的脂肪分数 (FF) 和功能肌肉体积 (FMV).
相关的MRI参数与最大等比腰部伸缩肌肉强度 (MILEMS) 和腰部伸缩肌肉耐力 (LEME).

主要成果:

与HV相比,DM2患者在LPM中表现出明显更高的FF (21.3%对11.3%,p<0.001).
在DM2患者中,LPM FMV与MILEMS有显著的相关性 (ρ=0.5,p=0.001),FF与LEME有显著的相关性 (ρ=-0.49,p=0.002).
在DM2患者和HV患者之间没有发现与年龄相关的LPM功能和形态参数恶化的显著差异.

结论:

腰延伸肌肉的形态变化与DM2的肌肉功能障碍有关.
虽然qMRI参数与DM2中的功能性测量相关,但它们不是腰部伸展肌肉损伤或疾病进展的可靠生物标志物.

关键词:

耐力耐力耐力耐力耐力磁共振成像技术的使用肌肉力量强度肌肉力量肌性缩症 2 型 2 型副脊柱肌肉副脊柱肌肉副脊柱肌肉

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