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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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相关实验视频

Updated: May 8, 2025

Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging
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Three-Dimensional Phase Resolved Functional Lung Magnetic Resonance Imaging

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用二次约束来进行电影MRI的一步图像重建.

Gengsheng L Zeng1,2, Xiaodong Ma2, Chun Yuan2

  • 1Utah Valley University, Orem, UT, United States.

International journal of biomedical research & practice
|December 27, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一个更快,非代的电影MRI重建方法. 它通过借用跨时间段的数据来提高图像质量,从而有可能降低医疗保健成本.

关键词:
电影磁力共振成像 (MRI).图像重建 图像重建

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科学领域:

  • 医疗成像医学成像
  • 生物医学工程 生物医学工程
  • 放射学 放射学是一门学科.

背景情况:

  • 电影MRI重建受到杂的个人时间框架的阻碍.
  • 现有的代算法耗时,限制了吞吐量.

研究的目的:

  • 开发一种非代算法用于电影MRI图像重建.
  • 通过结合来自多个时间框架的数据来规范图像重建.

主要方法:

  • 为了规范图像重建,制定了一个受约束的目标函数.
  • 变量计算被用来推导出一个非代算法.
  • 该算法是在一个过的反向投影框架中实现的.

主要成果:

  • 拟议的非代算法在临床大脑MRI研究中证明了可行性.
  • 该算法有效地从相邻的时间框架中借取信息,以改进重建.
  • 获得了一个封闭形式的解决方案,用于使用参考图像进行动态重建.

结论:

  • 非代重建显著提高了医疗保健机构的吞吐量.
  • 这种方法有可能减少整体医疗保健费用.
  • 衍生的公式提供了一个直接的方法,用于集成参考数据在动态MRI重建.