休息状态fMRI:未来临床应用的新兴概念
Shiori Amemiya1, Hidemasa Takao1, Osamu Abe1
1Department of Radiology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.
Journal of magnetic resonance imaging : JMRI
|July 10, 2023
概括
休息状态功能磁共振成像 (rsfMRI) 显示,全球信号是一个主要组成部分,而不仅仅是噪声. 这种全球信号提供了诊断生物标志物,并挑战了当前的网络分析假设.
科学领域:
- 神经成像是一种神经成像.
- 系统神经科学 系统神经科学
- 临床神经科学 临床神经科学
背景情况:
- 休息状态功能磁共振成像 (rsfMRI) 从自发的神经活动中识别大脑网络.
- rsfMRI在临床环境中是有价值的,因为其易于实施和短的扫描时间.
- 在rsfMRI中的全球信号在历史上一直被忽视,经常被认为是生理噪音.
研究的目的:
- 在rsfMRI中重新评估全球信号的意义.
- 探索全球信号作为诊断生物标记物的潜力.
- 挑战传统的rsfMRI分析范式.
主要方法:
- 对rsfMRI全球信号时空分析的最新研究的综述.
- 对全球信号对整体rsfMRI信号变异的贡献进行分析.
- 调查全球信号和静止状态网络 (RSN) 之间的关系.
主要成果:
- 全球信号是rsfMRI的主要组成部分,解释了大多数大脑信号变异.
- 全球信号包含有关局部血液动力学的丰富信息,作为潜在的诊断生物标志物.
- 时空分析表明,全球信号与RSN组织之间存在着根本的关联.
结论:
- 全球信号是rsfMRI的关键组成部分,而不仅仅是一个麻烦.
- 了解全球信号可以为临床应用带来新的诊断生物标志物.
- 对rsfMRI分析需要新的概念框架,包括全球信号的作用.
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