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相关概念视频

Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

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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...
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Imaging Studies IV: Magnetic Resonance Imaging01:27

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Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...
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Applications Of NMR In Biology01:25

Applications Of NMR In Biology

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Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics  for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
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Brain Imaging01:14

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
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相关实验视频

Updated: Jul 19, 2025

Magnetic Resonance Imaging of Multiple Sclerosis at 7.0 Tesla
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超高场核磁共振:它真正能带来变化的地方.

Siegfried Trattnig1, Gilbert Hangel2, Simon D Robinson2

  • 1High-Field MR Center - 7T MR, Department of Biomedical Imaging and Image-guided Therapy, Medical University Vienna, Lazarettgasse 14, 1090, Vienna, Austria. siegfried.trattnig@meduniwien.ac.at.

Radiologie (Heidelberg, Germany)
|August 16, 2023
PubMed
概括

超高场7特斯拉MRI为诊断多发性硬化症和瘤等疾病提供了卓越的细节. 先进的成像技术显示出希望,作为各种应用的新临床标准.

关键词:
7 特斯拉特斯拉是什么意思多发性硬化症是多发性硬化症.成像成像 成像光谱成像技术的成像敏感度加权的成像成像方法

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科学领域:

  • 医疗成像医学成像
  • 神经科学是一个神经科学.
  • 生物标志物 生物标志物

背景情况:

  • 两家主要供应商为临床使用提供FDA批准的7特斯拉 (T) 核磁共振扫描仪.
  • 对超高场MRI日益增长的兴趣源于增强的形态,功能和代谢成像能力.

研究的目的:

  • 探索7TMRI在各种医疗领域的临床应用和潜力.
  • 为了突出7TMRI相对于较低场强度的优势.

主要方法:

  • 利用7T系统的更高的信号噪声比率.
  • 在功能性MRI和灵敏度加权成像 (SWI) 中,利用血氧化水平依赖 (BOLD) 对比的超线性增加.
  • 采用化学转移的线性增加以获得更高的光谱分辨率.

主要成果:

  • 在多发性硬化症 (MS) 中,7-T MRI 可可视化皮质病变,中央静脉标志和偏磁边缘病变,有助于差异诊断和预后.
  • 高分辨率MR光谱成像为瘤代谢,分级和早期MS代谢变化提供了洞察力.
  • 成像显示了评估软骨修复和监测骨关节炎治疗的潜力.
  • 改善了对大脑中的发作焦点的检测.

结论:

  • 7T MRI正在成为特定临床应用的潜在新标准.
  • 关键应用包括MS中的SWI,瘤中的MR光谱成像,MS和,以及软骨修复中的成像.