在阿尔茨海默病和相关疾病中对死后病理学-MRI关联研究进行操作化,使用MRI引导的组织学采样
Chinmayee Athalye1, Alejandra Bahena2, Pulkit Khandelwal3
1Department of Bioengineering, University of Pennsylvania, Philadelphia, USA. cathalye@seas.upenn.edu.
Acta neuropathologica communications
|May 28, 2025
概括
这项研究引入了一种使用MRI引导的组织采样和数字病理学进行全脑分析的新协议. 这种方法增强了阿尔茨海默病的研究,使大规模,可复制的研究,整合神经成像和组织学.
科学领域:
- 神经科学是一个神经科学.
- 医疗成像医学成像
- 病理学 病理学 病理学
背景情况:
- 死后神经病理学对于诊断神经退行性疾病至关重要,但通常使用有限的采样.
- 阿尔茨海默病和相关疾病可能已经影响了传统采样方法遗漏的区域.
- 将先进的神经成像与组织病理学相结合,需要用于大脑储存的标准化协议.
研究的目的:
- 开发一个全面的协议,用于整个半球死后MRI导向的组织病理样本采集.
- 建立一个可靠的管道,用于大批量,标准化的脑银行.
- 为了促进大规模的研究,将神经成像与神经病理学联系起来.
主要方法:
- 开发了一种全半球死后7T核磁共振导向采样与数字成像的协议.
- 利用患者特定的3D打印模具进行标准化组织处理和空间引用.
- 创建了一个半自动化的MRI-to-histology注册管道和基于深度学习的定量病理评分系统.
主要成果:
- 验证了对29个阿尔茨海默氏病频谱诊断的大脑的协议.
- 皮层厚度与化积累之间的相关性已被证明.
- 建立了一个可扩展和可重复的管道,用于死后大脑分析.
结论:
- 开发的协议能够对整个大脑半球进行全面的MRI导向的组织病理学分析.
- 这个管道为大脑银行提供了一种标准化的方法,并促进了大规模的神经病理与神经成像关联研究.
- 这些发现对推进阿尔茨海默病和相关疾病的诊断和治疗策略具有重大意义.
相关概念视频
Magnetic Resonance Imaging
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...
Imaging Studies IV: Magnetic Resonance Imaging
Introduction:Magnetic Resonance Imaging, or MRI, can include a specialized imaging technique of the urinary system known as Magnetic Resonance Urography (MRU). This radiation-free technique uses strong magnetic fields and radio waves to produce detailed images with the help of a computer. MRU is particularly effective for visualizing fluid-filled structures like the kidneys, ureters, and bladder.Applications of MRI in the Genitourinary SystemKidneys and Ureters: MRI detects tumors, cysts,...


