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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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可整合的磁流体高热系统用于3D磁粒子成像.

André Behrends1, Huimin Wei1, Alexander Neumann2

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Nanotheranostics
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概括

这项研究将磁流体高温症 (MFH) 与磁粒子成像 (MPI) 系统相结合. 这种新的平台可以通过MPI引导精确,非侵入性,空间选择性的高温治疗.

关键词:
以图像为指导的治疗.磁流体高温症是一种超热现象.磁性颗粒成像技术 磁性粒子成像技术他们是天文学家.

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科学领域:

  • 生物医学工程 生物医学工程
  • 医疗成像医学成像
  • 热浪学是什么意思 热浪学

背景情况:

  • 磁粒子成像 (MPI) 和磁流体高温 (MFH) 可实现局部高温和成像辅助温度计.
  • 当前的MPI-MFH平台需要单独的系统和对象传输,从而限制了效率.
  • 将MFH功能集成到现有的MPI扫描仪中提供了一种更简单的方法.

研究的目的:

  • 设计,开发和评估可集成的MFH平台,与商业MPI扫描仪兼容.
  • 为了克服MFH和MPI系统之间的磁性合的挑战.
  • 为了实现MPI引导的,空间选择性的磁性高温疗法.

主要方法:

  • 开发了可集成的MFH平台,旨在扩展商业MPI扫描仪.
  • 采用一种自补偿方法,使用启发式算法来缓解磁合问题.
  • 评估的电磁特性,冷却,电场强度,磁合和粒子加热.

主要成果:

  • 该MFH平台为粒子加热产生合适的磁场,并与MPI扫描仪兼容.
  • 使用梯度场的选择性加热和使用MPI焦点场的可转向加热定位得到了实现.
  • 集成成功地保护了MPI扫描仪免受有害的诱导电压的影响.

结论:

  • 开发的MFH平台与商业MPI扫描仪无集成,使MFH功能成为可能.
  • 这一集成系统促进了MPI引导的,空间选择性的磁性高温疗法.
  • 这种方法为未来先进的高温治疗方法的临床前试验铺平了道路.