基线大脑体积预测轻度认知障碍的未来大脑缩:阿尔茨海默氏症连续体的基于张量形态学研究
Mehrdad Mozafar1,2, Mobina Amanollahi3, Mohammad Sadeghi1
1Department of Radiology, Tehran University of Medical Sciences.
Journal of computer assisted tomography
|April 1, 2025
概括
轻度认知障碍 (MCI) 患者的基线脑容量较低,经历更大的年度脑缩. 张量基形态测量 (TBM) 显示出作为MCI进展和预后评估的成像标记物的潜力.
科学领域:
- 神经成像是一种神经成像.
- 神经学 神经学
- 放射学 放射学是一门学科.
背景情况:
- 对轻度认知障碍 (MCI) 的预后评估对于患者管理至关重要.
- 磁共振成像 (MRI) 为评估MCI提供了一个易于使用的工具.
- 了解MCI中的大脑变化可以帮助预测疾病的进展.
研究的目的:
- 评估体积核磁共振和MCI认知评分的预后价值.
- 在MCI患者中使用张量基形态测量 (TBM) 评估年度全脑缩.
- 为了将脑缩率与认知变化和基线大脑体积相关联.
主要方法:
- 使用阿尔茨海默病神经成像倡议数据库进行了回顾性纵向研究.
- 对MCI患者和健康对照 (HCs) 的体积MRI和认知复合得分的分析.
- 用TBM来评估全脑缩和可靠变化指数 (RCI) 来对认知变化进行分类.
主要成果:
- 与HC患者相比,MCI患者的1年脑容量损失显著增加.
- 整个大脑,海马体,内腔和中部区域的较低基线体积与MCI中较大的1年缩率有关.
- 在MCI的基线记忆得分和年脑缩率之间观察到正相关性,尽管在多次比较校正后并不显著.
结论:
- 在MCI中,降低基线大脑体积与每年增加的大脑体积损失有关,通过TBM确定.
- 作为MCI体积研究的成像生物标志物,TBM显示出前景.
- 需要进一步的研究,以阐明在阿尔茨海默氏病谱中认知得分,RCI和TBM之间的关系.
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