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相关概念视频

Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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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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相关实验视频

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身体活动行为与中风后结构性大脑MRI特征之间的纵向关联:来自Nor-COAST项目的子研究

Geske Luzum1, Eva B Aamodt2, Heather Allore3

  • 1Department of Neuromedicine and Movement Science, NTNU - Norwegian University of Science and Technology, Trondheim, Norway.

Neurorehabilitation and neural repair
|January 9, 2026
PubMed
概括

脑卒中后的较高体力活动 (PA) 与大脑体积增加和年轻大脑年龄有关. 在中风后保持活跃的生活方式有利于大脑结构,并可能减缓大脑衰老.

关键词:
大脑年龄 大脑年龄大脑维护大脑维护神经成像是一种神经成像.身体活动 身体活动二次预防二次预防.

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科学领域:

  • 神经科学是一个神经科学.
  • 放射学 放射学是一门学科.
  • 公共卫生 公共卫生

背景情况:

  • 脑卒中后的体力活动 (PA) 可能会影响大脑结构和大脑年龄.
  • 在中风后,大脑体积和年龄估计的个体间差异尚未完全理解.

研究的目的:

  • 为了检查中风后身体活动和结构性脑MRI特征之间的纵向关系.
  • 研究如何PA水平和轨迹影响大脑年龄差距和大脑体积.

主要方法:

  • 使用加速计数据进行PA评估的纵向队列研究.
  • 线性混合模型分析了日常步骤,PA轨迹,大脑年龄差距 (BAG) 和大脑体积 (皮质,海马,乳头) 之间的关联.
  • 模型对年龄,性别,教育,中风严重程度和内体积进行了控制.

主要成果:

  • 增加每日步骤与较低的BAG和较大的皮质和海马体积相关.
  • 每天步骤和乳头体积之间的关联显示出一个曲线图案,峰值约为4700步/天.
  • 与最不活跃组相比,PA轨迹最高的参与者表现出明显较低的BAG和较大的乳头体积.

结论:

  • 卒中后较高水平的体力活动与有益的结构性大脑变化有关.
  • 保持体力活动可能有助于使大脑看起来更年轻,并在中风后保持大脑体积.