通过时间空间标记逆转脉冲 (时间-SLIP) MRA 和对比增强的 MRA 来进行内血管治疗的访问路线的比较
Satoshi Kobayashi1,2, Toshiya Osanai1, Taku Sugiyama1
1Department of Neurosurgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido University, Sapporo, Hokkaido, Japan.
Journal of neuroendovascular therapy
|August 7, 2023
概括
非对比的时间-SLIP MRA有效地评估了急性缺血性中风患者常见的动脉通道. 这种方法是对比度增强MRA的可行的替代方案,用于评估内血管治疗的资格.
科学领域:
- 血管成像 血管成像
- 神经学 神经学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 内血管治疗需要迅速和安全地评估通往常 carotid 动脉 (CCA) 的通道.
- 评估CCA对于在急性缺血性中风的内血管血栓切除术等手术中放置导管至关重要.
研究的目的:
- 确定非对比磁共振血管造影 (MRA) 使用时空间标记反转脉冲 (Time-SLIP) 是否可以有效评估急性缺血性中风评估的患者的接入路径.
- 为了比较 Time-SLIP MRA 与对比度增强 (CE) MRA 的疗效,用于访问路线评估.
主要方法:
- 对31名脑梗塞患者的回顾性审查,这些患者接受了从大动脉门到CCA的成像.
- 盲目评估的图像质量,狭窄,大动脉形状,和扭曲的放射科医生.
- 时间间隔MRA发现与CE-MRA (隐含) 的比较.
主要成果:
- 所有的时间SLIPMRA图像都是诊断性的.
- 高灵敏度 (83%) 和特异性 (96%) 在检测狭窄.
- 对于大动脉类型的分类和不同程度的扭曲性 (93-100%) 的优异灵敏度 (100%).
结论:
- 时间-SLIP MRA是一种非对比成像技术,适用于评估脑梗塞患者的入口路径.
- 它作为CE-MRA的潜在替代品,特别是对于那些不符合急性血栓切除疗法的患者.
相关概念视频
01:24Magnetic Resonance Imaging
5.2K
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...
5.2K
01:21Imaging Studies for Cardiovascular System IV: CMRI
60
Cardiovascular magnetic resonance imaging, or CMRI, is a non-invasive diagnostic test that employs a magnetic field and radiofrequency waves to create precise images of the heart and arteries. It provides comprehensive information about cardiac anatomy, function, perfusion, and tissue characterization without ionizing radiation.IndicationsCMRI diagnoses various heart conditions, including tissue damage from heart attacks, ischemic heart disease, myocarditis, aortic issues (tears, aneurysms,...
60