在帕金森病和非典型帕金森症疾病中免费水成像
Apurva Shah1, Shweta Prasad2, Abhilasha Indoria2
1Symbiosis Center for Medical Image Analysis and Symbiosis Institute of Technology, Symbiosis International University, Lavale, Mulshi, Pune, 412115, Maharashtra, India.
Journal of neurology
|January 24, 2024
概括
免费水 (FW) 纠正扩散MRI揭示了帕金森病 (PD),多重系统缩 (MSA) 和渐进性上核性麻 (PSP) 中大脑变化的明显模式. 这些FW地图显示了这些神经退行性疾病区分的诊断标记的潜力.
科学领域:
- 神经成像是一种神经成像.
- 扩散式核磁共振成像 (MRI)
- 神经退行性疾病 神经退行性疾病
背景情况:
- 免费水 (FW) 校正的扩散MRI测量比标准扩散指标提供了更高的精度.
- 这项研究调查了帕金森病 (PD),渐进性超核性麻 (PSP) 和多重系统缩 (MSA) 中的白色和深灰色物质 (WM,GM) 的FW和纠正的扩散指标.
- 这项研究旨在确定这些条件下的特征性WM异常.
研究的目的:
- 在全脑WM和GM结构中全面评估FW校正的扩散指标.
- 确定PD,PSP和MSA中WM异常的可能模式.
- 探索FW地图作为这些疾病的诊断标记物的潜力.
主要方法:
- 从患有PD (n=133),MSA (n=25),PSP (n=30) 和健康对照 (HC) (n=99) 的患者获得的扩散MRI数据.
- 产生扩散指标 (FA,MD,AD,RD) 和使用双张力模型计算FW校正的FA地图.
- 基于管道的空间统计 (TBSS) 进行了5000次排列 (p<0.05);在基底中分析的GM扩散度图 (FDR,p<0.05).
主要成果:
- 与HC相比,PD患者显示焦点FW变化.
- MSA在小脑和脑干表现出变化;PSP在 supratentorial WM和中脑中显示出增加的FW.
- 这三种情况都显示出 substantia nigra FW 的增加;MSA 和 PSP 在双边肌中显示出 FW 的增加,而 PD 显示出球体外和双边肌的变化.
结论:
- 在PD和非典型帕金森症之间观察到FW改变模式的明确差异.
- 整个大脑的FW地图显示了作为PD,PSP和MSA的诊断标记的潜在实用性.
- 这项研究强调了FW校正的扩散MRI在分辨神经退行性帕金森综合征的价值.
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