Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Magnetic Resonance Imaging01:24

Magnetic 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
Assessment of Diffusion and Perfusion01:17

Assessment of Diffusion and Perfusion

1.0K
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...
1.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Subtle language deficits in WAB-recovered patients at 12 months after left-hemisphere stroke.

medRxiv : the preprint server for health sciences·2026
Same author

Five-year change in brain metabolism across the spectrum of cognitive impairment in older adults: a quantitative MRI study.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2026
Same author

Acute-Phase Machine Learning Prediction of 12-Month Aphasia and Discourse Recovery.

medRxiv : the preprint server for health sciences·2026
Same author

The role of diffusion-weighted MRI in biological image-guided radiation therapy: a roadmap.

Physics in medicine and biology·2026
Same author

Revisiting Western Aphasia Battery-Revised in the Context of Mild Impairment.

American journal of speech-language pathology·2026
Same author

Imaging Venous Transit Time and Blood-Brain Barrier Permeability of the Deep Brain.

Magnetic resonance in medicine·2026

相关实验视频

Updated: Jul 15, 2025

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
09:59

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia

Published on: September 16, 2017

14.2K

同时输液,扩散,T2 *,和T1映射与MR指纹绘制.

Hongli Fan1,2, Lisa Bunker3, Zihan Wang1,2

  • 1Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

Magnetic resonance in medicine
|September 26, 2023
PubMed
概括

这项研究引入了一种新的MRI技术,使用磁共振指纹 (MRF) 同时绘制脑 perfusion,扩散,T2 *和T1. 这种新的方法提供了出色的图像质量,对中风患者来说是有前途的.

关键词:
MR指纹 (MRF) 的使用动脉旋转标签的标签动脉过境时间 动脉过境时间大脑的血液流动.扩散扩散是一种扩散.perfusion perfusion perfusion perfusion perfusion perfusion perfusion 透 透 透 透 透 透 透 透 透 透 透 透放松计放松计放松计.一次性中风中风中风中风中风

更多相关视频

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring
17:16

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring

Published on: December 9, 2010

10.4K
Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
09:30

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

19.6K

相关实验视频

Last Updated: Jul 15, 2025

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia
09:59

A Magnetic Resonance Imaging Protocol for Stroke Onset Time Estimation in Permanent Cerebral Ischemia

Published on: September 16, 2017

14.2K
Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring
17:16

Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring

Published on: December 9, 2010

10.4K
Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease
09:30

Quantitative Magnetic Resonance Imaging of Skeletal Muscle Disease

Published on: December 18, 2016

19.6K

科学领域:

  • 神经成像是一种神经成像.
  • 磁共振成像 (MRI) 是一种磁共振成像技术.
  • 脑血管疾病 脑血管疾病

背景情况:

  • 脑输液,扩散,T2*和T1的定量测绘对于脑血管疾病诊断至关重要.
  • 目前的MRI技术需要为每个参数进行单独的序列,从而增加扫描时间.

研究的目的:

  • 开发一种新的MRI技术,用于同时估计 perfusion,diffusion,T2*和T1参数.
  • 为了减少扫描时间,提高多参数脑图的效率.

主要方法:

  • 基于MRF-动脉旋转标记 (ASL) 的修改磁共振指纹 (MRF) 序列被开发出来.
  • 该序列包含了经过修改的采集模块,具有不同的回声时间 (TE) 和扩散权重梯度.
  • 量化值与参考方法 (MRF-ASL,DWI,T2*映射) 进行了比较,并评估了测试重复测试的可重复性.

主要成果:

  • 与单独的序列相比,这种新方法可以减少24%的扫描时间.
  • 参数图显示出出色的图像质量,与参考方法有很强的相关性.
  • 观察到ADC,T2*,T1和B1+估计的高可靠性 (CoV <5%).
  • 该技术在最初的患者应用中成功检测出缺血性和出血性中风.

结论:

  • 提出的同时多参数映射技术是MRI的一个有前途的进步.
  • 这种方法在中风患者中具有显著的临床应用潜力,可提供高效和全面的脑评估.