在右叶中受损的模块化和枢纽拓:多模式MRI网络分析
Chuanyong Qu1,2, Jinou Zheng2, Zexiang Chen2
1People's Hospital of Ningxia Hui Autonomous Region, NingXia Medical University, Yinchuan, China.
Frontiers in neurology
|January 28, 2026
概括
右叶 (rTLE) 涉及到大脑网络组织和结构连接的改变. 这项研究揭示了RTLE患者中中断的模块化和连接器枢纽拓,为疾病机制提供了洞察力.
科学领域:
- 神经科学是一个神经科学.
- 的研究研究.
- 脑部成像 脑部成像
背景情况:
- 右叶 (rTLE) 与大脑网络和结构连接性障碍有关.
- 在RTLE的这些变化背后的精确机制仍然不完全理解.
研究的目的:
- 为了研究模块相互作用的变化,连接器枢纽 (CH) 拓,以及与之相关的结构变化在RTLE患者.
- 探索功能网络异常和rTLE大脑的结构变化之间的关系.
主要方法:
- 使用休息状态功能性MRI (rs-fMRI),扩散权重成像 (DWI) 和体积MRI (vMRI) 在30名rTLE患者和30名健康对照 (HC) 中.
- 分析了模块化相互作用,功能连接 (FC) 和 CH 拓性质的功能网络.
- 在关键CH区域使用基于通道的空间统计 (TBSS) 和皮质形态测量检查了白质微观结构.
主要成果:
- rTLE患者表现出减少的模块化 (Q),小世界指数 (σ) 和聚类系数 (γ),模块化相互作用增加.
- 连接器枢纽 (CHs) 显示了变化的拓,包括增加的参与系数 (PC) 和模块内度z-score (WMD).
- 结构性发现包括:小部分异构 (FA) 的降低,体的辐射扩散率 (RD) 的增加,以及辅助运动区域 (SMA) 和下回 (ITG) 的皮质变薄.
结论:
- rTLE的特点是被破坏的模块化架构和改变的连接器枢纽拓,导致了显著的网络重组.
- 这些功能网络的变化与特定的白质和皮质结构异常有关.
- 这些发现为右叶的病理生理学提供了新的见解.
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