组织样本制备方法对髓敏感定量MR成像学的影响
Amaya Murguia1, Scott D Swanson2,3, Ulrich Scheven4
1Department of Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, Michigan, USA.
Magnetic resonance in medicine
|July 25, 2025
概括
结是一种可行的方法,可以保存大脑组织进行定量MRI (qMRI) 分析,与组织学有很好的相关性. 然而,冷和解可能会改变qMRI参数值,特别是在髓含量高的地区.
科学领域:
- 神经成像是一种神经成像.
- 历史学 历史学 历史学
- 生物医学工程 生物医学工程
背景情况:
- 定量MRI (qMRI) 参数验证通常使用ex vivo固定组织.
- 冷和解对髓敏感的qMRI参数的影响需要进一步研究.
研究的目的:
- 评估冷和解对髓敏感的qMRI参数的影响.
- 将新鲜,解和固定组织的qMRI结果与组织学数据进行比较.
主要方法:
- 使用了髓水成像和磁化转移 (MT) MRI 技术.
- 在14个新鲜,解和固定的绵羊脑组织样本上进行了实验.
- qMRI测量与Luxol快速蓝色 (LFB) 组织学染色进行了比较.
主要成果:
- 来自新鲜,解和固定组织的qMRI值与LFB组织学有很强的相关性.
- 与新鲜组织相比,解和固定组织显示大多数qMRI参数值增加3-32%.
- 组织学证实,解的样本在冷后保持了组织完整性.
结论:
- 结是一种实用的替代方法,可以用于脑组织的QMRI分析.
- 结和解可能会导致基于区域髓含量的qMRI参数值的差异变化.
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