在异常性正常压力水中明显的大脑皮层微观结构变化
Myong Hun Hahm1, Shin Young Jeong2, Suhyun Kim3
1Department of Radiology, Daekyung Imaging Center, Daegu, Republic of Korea.
Frontiers in neurology
|August 29, 2025
概括
与阿尔茨海默氏症患者相比,患有异常正常压力水脑 (INPH) 的患者表现出不同的皮质平均扩散率 (MD).
科学领域:
- 神经成像
- 神经学
- 医疗诊断
背景情况:
- 老年人常见的神经退行性疾病是异常性正常压力水 (INPH) 和阿尔茨海默病 (AD).
- 区分INPH和AD对于适当的治疗和患者管理至关重要.
- 通过扩散张力成像 (DTI) 检测到的皮质微结构变化可能提供差异诊断标记.
研究的目的:
- 在INPH患者,AD患者和健康对照者之间调查皮质平均扩散率 (MD) 的差异.
- 在INPH中识别特定的皮质区域,使其与AD区分开来.
- 评估这些MD变化的诊断性能,以区分INPH和AD.
主要方法:
- 包括DTI在内的MRI对42名INPH患者,51名AD患者和23名健康对照进行.
- 用表面分析检查整个大脑的皮质MD.
- 根据INPH患者观察到的MD变化,确定了特定的关注区域 (ROI).
主要成果:
- 与对照组相比,INPH患者的额头,头和部凸区域的MD减少 (INPHMD低ROI).
- 与对照组相比,INPH患者的前额和皮层区域MD增加 (INPHMD高回报率).
- 在INPH MD中平均的低ROI有效地将INPH与AD区分开来,AUC为0.857.
结论:
- 在INPH患者中存在明显的皮质MD变化模式.
- 皮质区域的减少MD可以区分INPH和AD的准确性很好.
- 通过皮质MD评估微结构完整性可能有助于区分老年人中的INPH和AD.
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