脑粉样血管病变中的认知相对出血发作:神经成像特征
Giulia Perini1,2, Matteo Cotta Ramusino1, Lisa Maria Farina3
1Unit of Behavioral Neurology and Center for Cognitive Disorders and Dementias (CDCD), IRCCS Mondino Foundation, Pavia, Italy.
Current Alzheimer research
|July 14, 2023
概括
脑粉样血管病变 (CAA) 与认知衰退在MRI上显示更多的脑微血流 (CMB) 和白质超强度 (WMH),而不是出血发作. 这些MRI标记可能有助于区分CAA表现,并了解其机制.
科学领域:
- 神经学 神经学
- 神经辐射学神经辐射学
- 神经退行性疾病 神经退行性疾病
背景情况:
- 大脑粉样性血管病变 (CAA) 通常呈现为脑内出血或认知能力下降.
- 了解疾病表现的差异对于诊断和管理至关重要.
研究的目的:
- 为了调查磁共振成像 (MRI) 特性是否在CAA患者之间有血流发作与认知衰退发作之间的差异.
- 探索MRI标记物与认知发作CAA中的临床/病理资料之间的关系.
主要方法:
- 对61名CAA患者的回顾性分析,按发病表现分类 (出血与认知衰退).
- 对小血管疾病的MRI标志物的比较,包括大脑微型血流 (CMB),白质超强度 (WMH) 和皮质缩.
- 基于脑脊液 (CSF) 和认知发病组的神经心理学资料的MRI标记物的探索性分析.
主要成果:
- 与出血患者相比,认知发病的CAA患者表现出更高的CMBs (特别是叶和岛屿叶) 和WMHs的流行率.
- 在认知发病组中,患有阿尔茨海默病 (AD) 脑脊髓形状的患者没有显示出明显的MRI差异.
- 与amnestic或dysexecutive亚组相比,具有多域认知特征的患者显示WMH和表层CMB的增加.
结论:
- 增加WMH和CMB的负担,特别是在叶和岛屿叶,与CAA的认知表现有关.
- 磁力共振成像 (MRI) 标志物有可能阐明脑粉样血管病变的临床异质性和潜在机制.
相关概念视频
Alzheimer's Disease: Overview
525
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
525
Aneurysm II: Clinical Manifestations and Diagnostic Studies
10
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
10


