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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

Imaging Studies IV: Magnetic Resonance Imaging

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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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Proteomics01:33

Proteomics

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A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
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Magnetism01:30

Magnetism

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Magnets are commonly found in everyday objects, such as toys, hangers, elevators, doorbells, and computer devices. Experimentation on these magnets shows that all magnets have two poles: one is labeled north (N) and the other south (S). Magnetic poles repel if they are alike and attract if unlike. Moreover, both poles of a magnet attract unmagnetized pieces of iron.
An individual magnetic pole cannot be isolated. No matter how small, every piece of a magnet contains a north pole and a south...
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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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Imaging Studies for Cardiovascular System IV: CMRI01:21

Imaging Studies for Cardiovascular System IV: CMRI

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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,...
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相关实验视频

Updated: Jan 8, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
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Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

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磁粒子成像系统的原理和关键技术:全面的审查

Jiayi Zhang1,2, Yinong Cui1,2, Yuanhao Cai1,2

  • 1School of Information Sciences and Technology, Northwest University, Xi'an, China.

Journal of magnetic resonance imaging : JMRI
|December 12, 2025
PubMed
概括

磁粒子成像 (MPI) 是一种使用超偏磁纳米粒子进行3D成像的新型追踪技术. 本综述系统地分析了MPI原理,技术和分子成像的发展趋势.

关键词:
封闭孔系统的封闭孔系统.磁性颗粒成像技术 磁性粒子成像技术开孔系统的开孔系统.这是物理原理的物理原理.单面系统是一个单面系统.

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Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

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Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
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Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement

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Optimized Setup and Protocol for Magnetic Domain Imaging with In Situ Hysteresis Measurement
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科学领域:

  • 生物医学成像技术 生物医学成像技术
  • 纳米技术纳米技术
  • 医学物理 医学物理

背景情况:

  • 磁粒子成像 (MPI) 是一种新兴的非侵入性,无电离的3D追踪器成像技术.
  • 它利用超偏磁纳米粒子的非线性磁化反应进行成像.

研究的目的:

  • 系统地审查MPI系统的原则和关键技术.
  • 为分子成像研究人员提供MPI的理论理解.

主要方法:

  • 在PubMed,科学网络和谷歌学者的系统文献评论.
  • 分析MPI成像原理,图像重建和设备特征.
  • 对不同类型的MPI系统进行比较分析 (闭孔,开孔,单面).

主要成果:

  • 介绍MPI成像原理和重建过程.
  • 各种MPI设备的技术特性概述.
  • 闭孔,开孔和单面MPI系统的优点和局限性的比较分析.

结论:

  • MPI是一种有前途的分子成像技术,具有多种应用.
  • 了解MPI原则和系统类型对于进一步开发至关重要.
  • 讨论了MPI系统开发的未来趋势和挑战.