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多模式磁共振成像分析早期轻度认知障碍的分析

Shuai Xu¹, Yingao Fan¹, Chenglu Mao¹

¹Department of Neurology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.

Journal of Alzheimer's disease : JAD

|March 4, 2025

概括

早期轻度认知障碍 (EMCI) 显示出明显的神经影像特征,包括功能连接和区域大脑活动的改变. 多模式MRI有助于识别这些变化,对于早期痴呆症的检测和干预至关重要.

科学领域:

神经成像是一种神经成像.
认知神经科学认知神经科学
放射学放射学是一门学科.

背景情况:

早期轻度认知障碍 (EMCI) 是痴呆症的前体,需要早期检测才能进行干预.
识别EMCI的神经成像标记是关键的,但具有挑战性.

研究的目的:

综合评估EMCI中的结构和功能神经成像变化,使用多模式MRI.
了解EMCI中神经成像变化的潜在机制.

主要方法:

来自ADNI. 的111名参与者 (CN,EMCI,LMCI,AD)
结构性MRI:海马和杏仁体子区域的细分 (FreeSurfer).
功能性MRI:ALFF,fALFF,ReHo,功能连接和网络分析 (DPABI,GRETNA). 功能性MRI:ALFF,fALFF,ReHo,功能连接和网络分析 (DPABI,GRETNA). 功能性MRI:ALFF,fALFF,ReHo,功能连接和网络分析 (DPABI,GRETNA). 功能性MRI:ALFF,fALFF,ReHo,功能连接和网络分析 (DPABI,GRETNA).

主要成果:

结构性MRI显示AD与EMCI的海马/杏仁体体积下降.
与AD相比,EMCI显示了fALFF (右岛) 和ReHo (双边尾状) 的显著差异.
与CN,LMCI和AD组相比,EMCI表现出改变了涉及海马和回的功能连接模式.

结论:

多模式MRI有效地揭示了EMCI的神经成像特征.
这些发现增强了对早期认知衰退中神经成像变化背后的机制的理解.
这些见解支持开发痴呆症早期诊断工具.

关键词:

阿尔茨海默氏症的疾病是阿尔茨海默氏症.低频波动的幅度是低频波动的幅度.早期轻度认知障碍早期轻度认知障碍低频波动的分数幅度的低频波动.功能连接性的功能连接性图形理论中的图形理论.区域均性区域均性结构结构结构结构

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