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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: Feb 28, 2026

Training Dogs for Awake, Unrestrained Functional Magnetic Resonance Imaging
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Training Dogs for Awake, Unrestrained Functional Magnetic Resonance Imaging

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一个开源的限制系统用于磁共振成像在醒着的老鼠.

Richard Quansah Amissah1, Mahmoud Khaled Hanafy1, Hakan Kayir1

  • 1Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, Ontario N6A 3K7, Canada.

eNeuro
|February 26, 2026
PubMed
概括
此摘要是机器生成的。

我们开发了一个动物友好的平台,用于清醒的老鼠功能性MRI (fMRI),使得无需麻醉的高质量脑成像成为可能. 这种方法突出了麻醉.

关键词:
这就是为什么MRI是MRI.一个功能性的功能性功能.没有固定头部.在临床前的临床前.动物动物动物

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相关实验视频

Last Updated: Feb 28, 2026

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科学领域:

  • 神经科学是一个神经科学.
  • 医疗成像医学成像

背景情况:

  • 在临床前动物MRI中的麻醉改变了神经活动,限制了翻译相关性.
  • 醒着的动物功能性MRI (fMRI) 提供了生理学上相关的见解,但在设置过程中受到麻醉要求的阻碍.

研究的目的:

  • 开发和评估用于清醒的老鼠fMRI的控制系统和习惯性协议.
  • 为了实现高质量的,行为丰富的成像,无需麻醉.

主要方法:

  • 开发了一种模块化的3D打印制系统,需要5分钟的组装时间,不需要麻醉,耳塞或咬伤.
  • 对清醒的老鼠实施了为期11天的习惯化方案.
  • 采集了T2加权的解剖学和功能扫描,并使用RABIES管道对头部运动和功能连接进行分析.

主要成果:

  • 在清醒的老鼠中获得了高质量的解剖和功能图像.
  • 被麻醉的老鼠表现出明显减少的头部运动 (翻译,旋转,框架向上的位移).
  • 功能连接模式在清醒和麻醉的老鼠之间有所不同,尽管在校正后,并非所有差异都具有统计学意义.

结论:

  • 成功开发了一个可扩展,可复制和动物友好的平台,用于清醒的老鼠fMRI.
  • 这个平台可以提供高质量的,行为丰富的成像,无需麻醉.
  • 这项研究强调了麻醉对动物fMRI研究中的功能连接性的重大影响.