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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: Jun 21, 2025

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
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Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

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膀空化的计算流体动力学使用3D动态MRI.

Labib Shahid1, Juan Pablo Gonzalez-Pereira1, Cody Johnson2

  • 1Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA.

International journal for numerical methods in biomedical engineering
|July 16, 2024
PubMed
概括
此摘要是机器生成的。

基于磁共振成像 (MRI) 的计算流体动力学 (CFD) 显示出研究膀空气的前景. 这种新的方法可以评估膀功能,并潜在地诊断排泄功能障碍.

关键词:
3D动态MRI 3D动态MRI 3D动态MRI 3D动态MRI基于MRI的CFD是基于MRI的.计算流体动力学的流体动力学.患者特定的CFD是患者特定的CFD.尿动力学 尿动力学

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相关实验视频

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科学领域:

  • 尿动力学 尿动力学 尿动力学
  • 医疗成像医学成像
  • 计算流体动力学的流体动力学.

背景情况:

  • 基于图像的计算流体动力学 (CFD) 已经改变了心血管研究.
  • 传统的导管研究在评估复杂的流体动力学方面存在局限性.
  • 评估膀排空功能障碍往往依赖于临床泌尿动力学评估.

研究的目的:

  • 应用基于磁共振成像 (MRI) 的CFD来调查膀空气.
  • 为了证明MRI-CFD在尿动力学中的可行性和潜力.
  • 为膀功能评估引入新的定量指标.

主要方法:

  • 利用3D动态MRI来捕捉排泄期间的膀和尿道成像.
  • 开发了一种用于膀壁分析的表面网状加工工具.
  • 执行了膀和尿道的墙壁运动驱动的CFD模拟.

主要成果:

  • 从MRI-CFD数据 (流速和压力) 计算出尿动力学名图.
  • 结果表明正常的膀收缩性,在健康的志愿者中没有阻塞.
  • 量化了膀空白期间所做的工作.

结论:

  • 基于MRI的CFD是尿动力学研究的可行和潜在的强大工具.
  • 计算出的排泄工作为膀功能提供了一个新的定量衡量标准.
  • 这种方法有可能提高评估膀排空功能障碍的潜力.