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相关概念视频

Magnetic Resonance Imaging01:24

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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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Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling
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动脉旋转标记 perfusion 影像成像 动脉旋转标记

Manuel Taso1, David C Alsop1

  • 1Division of MRI Research, Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA.

Magnetic resonance imaging clinics of North America
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概括
此摘要是机器生成的。

动脉旋转标记 (ASL) 提供非侵入性MRI测量组织输液和血液流动. 这种技术使用标记的动脉血液作为标记器,对于研究大脑功能和各种神经疾病至关重要.

关键词:
动脉旋转标签的标签血液的流动 血液的流动核磁共振成像 (MRI) 的成像perfusion 输液是一种输液.

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科学领域:

  • 医疗成像医学成像
  • 神经科学是一个神经科学.
  • 生物物理学的生物物理.

背景情况:

  • 组织输液的非侵入性成像对于研究和临床环境至关重要.
  • 动脉旋转标记 (ASL) 是一种关键的MRI技术,用于评估没有对比剂的血液流动.

研究的目的:

  • 审查ASL输液成像的基本原则.
  • 讨论ASL标签策略和量化方法.
  • 突出ASL在神经科学和临床病理学中的广泛应用.

主要方法:

  • ASL利用射频和磁场梯度来标记动脉血液水.
  • 被标记的动脉血液作为输液测量的内源性标记物.
  • 通过ASL技术实现组织血流的定量分析.

主要成果:

  • ASL提供了一种无对比的方法,用于成像组织 perfusion.
  • 该技术允许精确测量和量化血液流动.
  • 在三十年的研究中,ASL已经证明了显著的实用性.

结论:

  • ASL是用于非侵入性输液成像的多功能和成熟的工具.
  • 它的应用范围包括正常的大脑功能,神经血管疾病,神经瘤学和退行性疾病.
  • 在ASL的持续进步对医学研究和患者护理作出了重大贡献.