在缺血性中风中介绍庇护所的概念
Tharani Thirugnanachandran1, Henry Ma1, Geoffrey A Donnan2
1Stroke and Ageing Research (STAR), Department of Medicine, School of Clinical Sciences at Monash Health, Melbourne, Victoria, Australia (T.T., H.M., T.P.).
Stroke
|March 27, 2024
概括
研究人员确定了大脑中的"庇护所",在中风后心脏病发作的可能性很低. 这些区域受到附带循环的保护,为中风地形和治疗策略提供了新的见解.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是一门学科.
- 血管神经学 血管神经学
背景情况:
- 大脑中的动脉区域的地形分布,特别是关于 supratentorial 心脏病发作,对于理解中风模式至关重要.
- 患上心脏病发作 (Pi) 概率高的区域通常位于大脑深层,因为附带血液供应有限.
- 然而,低Pi的区域,称为庇护所,研究关注度较低.
研究的目的:
- 定义和表征皮质区域,在动脉区域封闭后,心脏病发作 (Pi) 的概率较低.
- 调查这些低Pi区域存在的解剖基础,称为庇护所.
主要方法:
- 利用从皮质中风患者和记录的血管封闭的 supratentorial 心脏病发作的已公布的数字地图.
- 从T2权重磁共振图像 (MRI) 细分了心脏病发作,并将其记录在标准的大脑模板 (MNI 152) 上.
- 平均分段MRI来计算voxel水平Pi,并确定圣地作为Pi<0.1.1的区域.
主要成果:
- 分析了154名患者的数据 (63%是男性,平均年龄为69岁).
- 在中风发作后35天的中位数进行了MRI扫描.
- 识别了前额 (例如,直结环),额头 (例如,上边结环) 和皮层 (例如,皮) 的庇护所.
结论:
- 提出存在皮质"庇护所",血管封闭后心脏病发作的概率较低.
- 将这些部位的保护作用归因于勒普托门关节附带循环的补偿能力.
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