在高山关节炎中大脑输液特征:来自pCASL MRI的见解
Yi Zhao1, Hongtao Zhang2, Fang Kong1
1Department of Rheumatology and Allergy, Xuanwu Hospital, Capital Medical University, Beijing, China.
International journal of rheumatic diseases
|June 16, 2025
概括
塔卡亚苏动脉炎 (TA) 患者的脑血流量减少,动脉传输时间延长,这表明脑输液缺陷显著. 脊椎动脉干扰的严重程度与输液减少相关,突出显示了pCASL-MRI.
科学领域:
- 神经成像是一种神经成像.
- 血管医学 血管医学
- 放射学 放射学是一门学科.
背景情况:
- 塔卡亚苏动脉炎 (TA) 是一种大血管血管炎,可以影响大脑动脉,导致潜在的神经并发症.
- 评估大脑输液对于了解TA对大脑功能的影响至关重要.
- 伪连续动脉旋转标记 (pCASL) MRI提供了一种非侵入性方法来评估大脑血液动力学.
研究的目的:
- 用 pCASL MRI 检查高山氏动脉炎 (TA) 影响大脑血液供应动脉的患者的大脑 perfusion 特性.
- 为了比较TA患者和健康对照者之间的脑血流 (CBF) 和动脉传输时间 (ATT).
- 探索TA患者的输液缺陷和临床因素之间的关系.
主要方法:
- pCASL-MRI用于测量75名健康女性和18名女性TA患者的全脑和区域CBF和ATT.
- 使用统计分析,包括独立的样本t测试或曼·惠特尼U测试来比较组.
- 根据大脑梗塞病史,疾病持续时间,活动和病变程度,对TA患者进行了分析.
主要成果:
- 与健康对照组相比,TA患者的全脑和区域CBF显著降低,ATT较长 (p <0.05).
- 在有或没有脑梗塞病史的TA患者之间,没有观察到CBF或ATT的显著差异.
- 患有3级或更高脊椎动脉病变的TA患者的CBF显着较低,ATT比那些病变不那么严重的人更长.
结论:
- 患有TA和中度至重度的上大动脉/内动脉病变的患者经历了显著的脑输液缺陷.
- 脊椎动脉受损程度是TA中脑输液减少的一个关键因素.
- pCASL-MRI是TA中大脑输液的非侵入性,方便和动态评估的一个有前途的工具.
更多相关视频
06:45Author Spotlight: Integrated Photoacoustic, Ultrasound, and Angiographic Tomography (PAUSAT) for NonInvasive Whole-Brain Imaging of Ischemic Stroke
Published on: June 2, 2023
1.8K
05:23Author Spotlight: Noninvasive Cerebral Blood Flow Determination in Human Functional Brain Region for Diagnosis of Neurological Disorders
Published on: May 31, 2024
652
相关概念视频
01:26Brain Abscess l: Introduction
A brain abscess is a focal, intracerebral infection characterized by a localized collection of pus within the brain parenchyma, resulting from microbial invasion and the body’s inflammatory response. It progresses through stages: early and late cerebritis, followed by early and late capsule formation, reflecting tissue destruction, immune response, and eventual encapsulation.Etiology and PathogenesisCausative organisms vary with source and host factors, often involving polymicrobial infections,...
01:19Cerebral Edema l: Introduction
Cerebral edema is a pathological increase in brain water content that disrupts intracranial pressure regulation and impairs neurological function. Because the cranial vault is rigid, even modest increases in tissue volume can compromise cerebral perfusion, distort neural structures, and initiate secondary injury. Cerebral edema develops through four principal mechanisms: vasogenic, cytotoxic, interstitial, and ionic.Vasogenic EdemaVasogenic edema arises from disruption of the blood–brain...
01:22Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...