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相关概念视频

Brain Imaging01:14

Brain Imaging

219
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

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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Imaging Studies I: CT and MRI01:14

Imaging Studies I: CT and MRI

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Introduction: MRI and CT scans are crucial advancements in medical imaging techniques, playing a vital role in diagnosing conditions related to the gastrointestinal (GI) system. Each scan serves distinct purposes, targets specific areas, and requires unique nursing duties.
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
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相关实验视频

Updated: Jun 15, 2025

Positron Emission Tomography Imaging for In Vivo Measuring of Myelin Content in the Lysolecithin Rat Model of Multiple Sclerosis
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在ALS中成像的新发展.

Jana Kleinerova1, Giorgia Querin2,3, Pierre-Francois Pradat2,3

  • 1Computational Neuroimaging Group (CNG), School of Medicine, Trinity College Dublin, Room 5.43, Pearse Street, Dublin 2, Dublin, Ireland.

Journal of neurology
|May 12, 2025
PubMed
概括
此摘要是机器生成的。

神经成像揭示了在肌缩侧面硬化症 (ALS) 中的大脑网络的变化,在症状出现前几年. 这些连接性改变是疾病进展和临床衰退的关键.

关键词:
肌缩性侧面硬化症 (AMLS) 是一种疾病.生物标志物 生物标志物大脑小部分的大脑小部分在前性痴呆症.磁共振成像技术 磁共振成像技术运动神经元疾病 运动神经元疾病神经成像是一种神经成像.主要侧面硬化症 主要侧面硬化症

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科学领域:

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

背景情况:

  • 最近的神经成像研究提供了关于肌缩侧面硬化症 (ALS) 的重要见解.
  • 这些研究表明,临床症状之前的早期,基因型特定的拓性大脑变化.
  • 它们描述了各种ALS临床现象的纵向传播模式和放射学基础.

研究的目的:

  • 审查最近在ALS和相关运动神经元疾病 (MNDs) 中神经成像方面的进展.
  • 要突出从焦点大脑变化转向网络和连接性改变的转变.
  • 讨论对理解ALS作为网络疾病的含义.

主要方法:

  • 应用先进的神经成像技术,包括7特斯拉MRI.
  • 使用聚类方法来识别疾病亚型.
  • 开发用于患者分类和预测的机器学习模型.

主要成果:

  • 在ALS中证明了基因型特定的拓变化和传播模式.
  • 阐明了ALS临床特征和外运动表现的神经成像基础.
  • 鉴定了渐进的皮层-皮层,皮层-基层,皮层-大脑皮层,皮层-皮层和皮层-脊柱断裂作为衰退的驱动因素.

结论:

  • 神经成像已经将ALS重新定义为网络或电路疾病.
  • 连接性改变是ALS临床衰退的主要驱动因素.
  • 定量神经成像越来越多地应用于非ALS MND.