在大多数MRI确认的腔中风中,CT输液病变存在
James O Thomas1, Milanka Visser2, Carlos Garcia-Esperon3
1South Western Sydney Clinical School, University of New South Wales, Liverpool, NSW, Australia; Department of Neurology, John Hunter Hospital, New Lambton Heights, NSW, Australia.
NeuroImage. Clinical
|November 10, 2025
概括
CT输液 (CTP) 可以检测大多数缺口性中风病例中的异常,即使标准算法显示负面结果. 在CTP上没有明显的输液异常的病例通常具有较小的心脏病发作和较轻的症状.
科学领域:
- 神经学 神经学
- 放射学 放射学是一门学科.
- 医疗成像医学成像
背景情况:
- 缺陷性中风诊断是具有挑战性的,因为常规成像的敏感性较低.
- CT输液 (CTP) 是用于中风评估的常见方法,但其对皮下腔内风的有用性是不确定的.
- 标准的CTP算法往往忽略了小的皮下病变.
研究的目的:
- 通过使用CTP,评估已确认的腔中风病例中 perfusion 异常的频率.
- 描述CTP异常和无CTP异常的内中风患者之间的临床和放射性差异.
- 评估CTP在标准算法失败时诊断缺口性中风方面的潜力.
主要方法:
- 对患有急性缺口性中风的患者进行了回顾性多中心研究,通过扩散权重核磁共振扫描得到证实.
- 包括具有负算法CTP图的患者.
- 手动审查CTP参数图的输液异常,最初是盲目的,然后是DWI联合注册.
主要成果:
- 在78%的缺口性中风病例中检测到输液异常 (58%明显,20%在DWI指导下微妙).
- 没有CTP异常的病例 (22%) 的心脏病发作量较小,NIHSS得分较低,开始到成像时间较长.
- 阴性CTP病例代表了一个独特的亚组,具有较小的心脏病发作和较轻微的缺陷.
结论:
- 焦点 perfusion 异常存在于大多数 DWI 经验证的缺口性中风中,尽管有负算法 CTP 地图.
- 心脏病发作的体积和扫描时间显著影响CTP病变的可见性.
- 先进的CTP处理或机器学习可能会增强其在急性缺口性中风评估中的作用.
更多相关视频
12:15Optimized System for Cerebral Perfusion Monitoring in the Rat Stroke Model of Intraluminal Middle Cerebral Artery Occlusion
Published on: February 17, 2013
23.7K
05:32Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model
Published on: August 11, 2023
2.8K
相关概念视频
01:24Magnetic Resonance Imaging
9.0K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
9.0K
01:17Assessment of Diffusion and Perfusion
1.5K
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
1.5K