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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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Hyperacute Interleukin-1β Production and Neutrophil Extracellular Trap Formation in the Cerebral Circulation of Stroke Patients with Large Vessel Occlusion.

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相关实验视频

Updated: Jan 9, 2026

Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping
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Brain Infarct Segmentation and Registration on MRI or CT for Lesion-symptom Mapping

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白物质超强度回归:事实还是伪造?

Ahmed A Bahrani1, Peter T Nelson2, Erin L Abner3

  • 1Department of Neurology, University of Kentucky, Lexington, KY, USA; Sanders-Brown Center on Aging, University of Kentucky, Lexington, KY, USA.

Neurobiology of aging
|December 9, 2025
PubMed
概括
此摘要是机器生成的。

白质超强度 (WMH) 可以减少体积,表明大脑恢复. 这一审查证实WMH回归是一种真正的生物过程,而不仅仅是一个人工制造物,可能受到治疗的影响.

关键词:
脑血管疾病的危险因素纵向研究是指长度研究.VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID VCID动态变化WMH动态变化可逆性白质病变的病变.

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科学领域:

  • 神经学 神经学
  • 放射学 放射学是一门学科.
  • 神经成像是一种神经成像.

背景情况:

  • 白质超强度 (WMH) 是关键的MRI生物标志物,与衰老和痴呆有关.
  • 虽然WMH体积通常会增加,但自发回归表明大脑有活跃的修复机制.
  • 关于WMH回归与成像文物之间的生物学现实仍在争论中.

研究的目的:

  • 审查关于白质超强度 (WMH) 回归的证据.
  • 分析检测和量化WMH回归的方法.
  • 探索潜在的WMH回归的生物机制.

主要方法:

  • 按照PRISMA指南进行系统的文献审查.
  • 分析了174篇文章,重点关注31篇直接涉及WMH回归.
  • 在WMH量化中评估技术因素和测量协议.

主要成果:

  • 确定了26项关于WMH回归的原始研究和5份病例报告.
  • 突出技术因素 (扫描参数,运动,间隔) 影响测量.
  • 发现了强有力的证据,支持WMH回归作为一个强大的生物现象.

结论:

  • WMH回归是一个具有生物学意义的过程,不仅仅是一个文物.
  • 标准化的测量协议对于准确的评估至关重要.
  • 临床干预可以调节WMH回归,这需要进一步研究.