在多发性硬化症中,慢性活跃病变优先定位在流域地区
Ahmad A Toubasi1, Jarrod J Eisma2, Jiacheng Wang1,3
1Neuroimaging Unit, Neuroimmunology Division, Department of Neurology, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.
Annals of clinical and translational neurology
|October 24, 2024
概括
多发性硬化症 (MS) 中的慢性活跃病变 (CAL) 首选发生在流域区域,这表明动脉区域和病变活动之间存在联系. 这一发现可能解释MS患者的病变演变和残疾进展.
科学领域:
- 神经成像是一种神经成像.
- 神经炎症是一种神经炎症.
- 血管神经学 血管神经学
背景情况:
- 偏磁边缘病变 (PRL) 是多发性硬化症 (MS) 慢性活性病变 (CAL) 的生物标志物,与神经障碍有关.
- 影响急性病变演变为CAL的因素尚不清楚.
- 这项研究调查了某些大脑区域中较低的氧含量与CALs发展之间的潜在联系.
研究的目的:
- 为了确定多发性硬化症 (MS) 中的慢性活性病变 (CAL) 是否优先位于流域 (WS) 区域.
- 探索动脉血管化模式与CALs存在之间的关系.
主要方法:
- 一项前性横截面研究,涉及64名患有多发性硬化症,临床隔离综合征或放射隔离综合征的人.
- 高分辨率的7.0特斯拉大脑MRI,包括T2加权的FLAIR和敏感度加权成像 (SWI) 序列.
- 使用血管图谱,将T2损伤分类为PRL或非PRL,并在流域 (ws) 或非流域 (nws) 区域内定位.
主要成果:
- 在1975个T2损伤中,4.5%被确定为PRL.
- 流域地区的PRL数量和比例明显高于非流域地区.
- PRL在流域地区更为普遍,这表明慢性活跃病变在这些地区的偏好局部化.
结论:
- 证明了动脉血管化区域与MS中慢性病变活动之间的新兴关联.
- 表明流域地区可能更容易发生慢性活跃病变的发展.
- 提供了病变演变和MS中残疾进展的潜在解释.
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