在乙肝肝硬化二次到轻度肝脑病变中的动态网络重新配置:多层网络分析
Chao Ju1, Longtao Yang1, Zhongshang Dai2,3,4
1Department of Radiology, The Second Xiangya Hospital of Central South University, Changsha, China.
Quantitative imaging in medicine and surgery
|February 11, 2026
概括
乙肝肝硬化患者表现出改变的大脑网络动态,影响认知功能. 大脑网络中的这些动态变化可能解释了最小的肝脑病变中大脑功能障碍.
科学领域:
- 神经科学是一个神经科学.
- 医疗成像医学成像
- 网络科学 网络科学
背景情况:
- 静态功能性大脑网络在最小肝脑病变 (MHE) 中被破坏.
- 在MHE中大脑网络的动态变化在很大程度上是未知的.
- 乙肝肝硬化 (HBC) 患者提供了一个独特的模型来研究MHE相关的大脑变化.
研究的目的:
- 调查MHE和没有MHE的HBC患者的动态功能网络特征.
- 评估动态网络变化与HBC患者神经认知功能之间的关联.
主要方法:
- 静止状态功能磁共振成像 (rs-fMRI) 数据的多层网络分析.
- 使用网络切换速率量化动态网络变化的量化.
- 在33名HBC患者和36名健康对照中进行神经认知评估和临床检查.
主要成果:
- 与健康对照组相比,HBC患者 (有或没有MHE) 的网络切换率发生了变化.
- 特定的子网络 (体力运动,注意力,前端对面,下皮层) 和大脑区域 (例如,右前中心,左状) 呈现出改变的动态.
- 改变的全球和左状回环切换率与认知分数 (PHES) 有正相关.
结论:
- HBC患者表现出失衡的功能性大脑动态.
- 改变的网络动态代表了MHE中大脑功能障碍的潜在机制.
- 这项研究为与HBC相关的MHE中大脑变化的动态性提供了新的见解.
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