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Updated: Jun 10, 2026

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在疑似轻微中风患者中,左侧神经症状和负扩散权重的MRI

Umberto Pensato^1,2,3, Nishita Singh⁴, Raed A Joundi⁵

¹IRCCS Humanitas Research Hospital, Milan, Italy.

The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques

|June 27, 2025

概括

患有左侧中风症状的患者更有可能有负的扩散加权成像 (DWI) 扫描. 这一发现表明大脑如何处理左侧与右侧神经症状的潜在差异.

科学领域:

神经学神经学
神经成像是一种神经成像.
脑卒中研究脑卒中研究

背景情况:

从历史上看,功能神经症状在左侧更为普遍,与右半球处理相关.
支持这一理论的客观成像证据有限.

研究的目的:

调查轻度中风患者的急性左侧症状 (右半球) 与右侧症状相比,更有可能呈现负扩散加权成像 (DWI).
探索神经症状表现和神经成像发现中的潜在横向化.

主要方法:

从前性,多中心的SpecTRA队列研究 (2013-2017) 的数据分析.
包括患有轻度,持久单侧半和/或半感官症状 (NIH中风量 ≤3) 且可用DWI的患者.
主要结局是负DWI结果的患者比例.

主要成果:

在包括的584名患者中,30.8%出现左侧症状.
与右侧症状 (41.1%) 相比,左侧症状 (58.9%) 的患者中有更高比例的DWI是负的.
左侧半衰减与负DWI显著相关 (RR 1.42),而左侧半感官症状没有 (RR 1.11).

结论:

在疑似轻微中风患者中,单侧左侧神经症状更频繁地与负面DWI相关.
这种探索性观察需要进一步调查DWI阴性病例的最终诊断,以确定最终结论.

关键词:

功能障碍功能障碍功能障碍缺血性中风中风横向性的横向性心理源的表现心理源的表现脑中风可以模仿中风.

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