相关实验视频

Updated: Jul 13, 2025

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla

Published on: February 19, 2021

在多发性硬化症中用多组件MR指纹测量白质变化

Martijn A Nagtegaal¹, Ingo Hermann², Sebastian Weingärtner³

¹Department of Imaging Physics, Delft University of Technology, Delft, the Netherlands; C.J. Gorter MRI Center, Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands.

NeuroImage. Clinical

|October 14, 2023

概括

新的MRI方法揭示了多发性硬化症 (MS) 患者的广泛白质变化. 多组件MR指纹检测 (MC-MRF) 检测到比传统扫描更广泛的组织损伤,从而更好地量化MS进展.

科学领域:

放射学和成像学放射学和成像学
神经科学是一个神经科学.
医学物理医学物理

背景情况:

多发性硬化症 (MS) 的特征是T2高强度病变,但周围的白质也受到影响.
传统的MRI往往低估了MS中白质损伤的全部程度.

研究的目的:

开发和验证一种新的定量MRI方法,以可视化和测量MS的白质组织变化.
将这些变化的程度与传统的FLAIR MRI发现进行比较.

主要方法:

采用快速,多参数定量MRI方法,使用多组件MR指纹 (MC-MRF).
使用关节度多元组件分析分析了MRF扫描,以获得磁化分数图.
在MS患者和对照人群之间评估了具有延长放松时间的成分的差异.

主要成果:

在MS患者中确定了额外的MRF成分,增加了MS患者的横向放松时间,可能代表了改变的自由水含量.
与健康对照人群相比,多发性硬化症患者在白质中显示出这种延长放松时间成分的体积显著更高.
这种MRF成分与FLAIR识别的白质损伤有适度的相关性,并且在73%的MS患者中更广泛.

结论:

开发的MC-MRF方法有效地捕捉了MS患者白质组织变化.
这种定量方法揭示了比传统的FLAIRMRI可视检测的更广泛的白质损伤.
MC-MRF提供了一种新的,更全面的方法来量化MS白质病理.

关键词:

MR指纹检查指纹检查指纹检查多元组件分析多元组件分析多发性硬化症是多发性硬化症.量化MRI是指数量化的MRI.白质损伤的损害是白质损伤.

更多相关视频

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases

Published on: July 28, 2013

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis

Published on: July 19, 2019

相关概念视频

Magnetic Resonance Imaging

Magnetic Resonance Imaging

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...