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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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阶段:7TMRI中电磁性质的个性化基于头部的自动模拟.

Zhengyi Lu1, Hao Liang2, Ming Lu2

  • 1Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN, USA.

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PHASE工具箱自动创建患者特定的头部模型用于电磁模拟. 该工具生成与黄金标准相当的准确模型,有助于安全评估和大规模研究.

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深度学习是一种深度学习.在EM模拟中使用EM模拟.人类头部模型模型这就是为什么SAR SAR SAR.

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科学领域:

  • 生物医学工程 生物医学工程
  • 计算电磁学 计算机电磁学
  • 医疗成像医学成像

背景情况:

  • 精确的人类头部模型对于电磁 (EM) 模拟至关重要,特别是对于特定吸收率 (SAR) 评估.
  • 目前的方法依赖于虚拟人口,因为公共资源和手动注释患者数据的局限性.
  • 需要可扩展,自动生成患者特定的头部模型.

研究的目的:

  • 推出个性化基于头部的EM属性自动模拟 (PHASE),一个开源工具箱.
  • 为了实现高分辨率的自动生成,针对患者的头部模型用于EM模拟.
  • 根据黄金标准对 PHASE 生成模型的性能进行评估.

主要方法:

  • 利用对T1加权的MRI和CT扫描对照15名真实患者.
  • 开发了一种自动化工具箱 (PHASE) 用于生成14个组织标记头部模型.
  • 进行半自动细分和EM模拟以评估性能.

主要成果:

  • 阶段模型证明了与黄金标准参考可比的全球SAR和局部SAR (SAR-10g) 值.
  • 自动化方法在生成准确,针对患者的头部模型方面被证明是有效的.
  • 该工具箱取得了适用于安全指南评估的结果.

结论:

  • PHASE 是一个有前途的工具,用于创建大规模,高质量的人类头部模型,用于电磁模拟.
  • PHASE的开源可用性促进了该领域的进一步研究和开发.
  • 阶段模型可以支持准确的电磁模拟,用于安全评估和个性化医疗.