在MRI上不成比例地扩大了脑下下空间的脑水,在病理确认的渐进性超核性麻中
Miki Kawazoe1,2, Shunsuke Koga1, Hiroaki Sekiya1
1Department of Neuroscience, Mayo Clinic, Jacksonville, FL.
Neurology. Clinical practice
|February 26, 2025
概括
像DESH和埃文斯指数这样的异常正常压力脑症 (iNPH) 成像标志物可能不是特定的. 这些在渐进性超核性 (PSP) 和勒维体病 (LBD) 中的发现可能导致误诊和不必要的iNPH手术.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 放射学 放射学是一门学科.
背景情况:
- 异常性正常压力脑症 (iNPH) 可以呈现出模仿其他神经退行性疾病的症状.
- 渐进性超核性麻 (PSP) 和勒维体病 (LBD) 与iNPH具有临床和成像相似之处.
- 准确的区分对于适当的患者管理和避免不必要的干预至关重要.
研究的目的:
- 调查iNPH相关成像特征的存在和意义在尸检确认PSP或LBD的患者中.
- 评估不成比例扩大的下大脑空间头症 (DESH) 和埃文斯指数 (EI) 的特异性,以区分iNPH与PSP和LBD.
- 在这些神经退行性疾病的成像发现中,评估NPH三元症状的频率.
主要方法:
- 对190名尸检确认PSP (n=101) 或LBD (n=89) 的患者进行了回顾性分析.
- 死亡前的MRI扫描被评估为DESH和高EI.
- 进行了后勤回归分析,以比较PSP和LBD组之间的成像特征,并根据年龄,性别和大脑重量进行调整.
主要成果:
- 在LBD中,DESH的发生率高于PSP (13%) 的发生率高于PSP (3%),而高EI在两组之间是相似的 (36%对32%).
- 调整后的分析显示,PSP和LBD之间DESH或高EI的可能性没有显著差异.
- 死亡时的平均年龄和大脑重量在PSP和LBD之间有显著差异.
结论:
- 图像标记者DESH和高EI,通常与iNPH相关,可能缺乏特异性.
- 这些发现表明,DESH和高EI可能存在于PSP或LBD患者的一个子集中.
- 对这些成像特征的误解可能导致iNPH的误诊和随后不必要的神经外科手术.
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