个性化功能nectome用于统计评估白质电路的基础任务fMRI激活在质瘤患者
Giovanni Sighinolfi1, Alexander Leemans2, David Neil Manners3
1IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy.
NeuroImage. Clinical
|January 6, 2026
概括
这项研究引入了Functionnectome框架的个性化解剖学先验,改善了脑瘤患者的结构功能映射. 个性化先验增强神经成像中的解剖学有效性和主体特异性.
科学领域:
- 神经成像是一种神经成像.
- 计算神经科学是一种神经科学.
- 医学物理 医学物理
背景情况:
- Functionnectome框架将基于任务的功能性MRI (fMRI) 与使用结构连接先验的白质路径集成在一起.
- 基于健康个体平均数据的标准化先验,未能捕捉到个体解剖变异,特别是在脑损伤患者中.
- 这种局限性阻碍了临床人群中准确的结构-功能映射.
研究的目的:
- 扩展Functionnectome框架,通过从特定主体的扩散磁共振成像 (MRI) 轨迹绘制开发个性化的解剖学先验.
- 改善对脑瘤患者的功能和结构数据的整合.
- 增强结构功能映射的解剖学有效性和学科特异性.
主要方法:
- 26名质瘤患者接受了3TMRI,包括扩散MRI和基于任务的fMRI.
- 使用TensorDet,概率纤维追踪 (PFT) 和iFOD2方法重建了全脑通道图.
- 用Functionnectome映射和统计分析生成个性化先验并与标准化先验进行比较.
主要成果:
- 来自概率曲谱的功能切除组与标准化版本显示了中度的相关性,表明了个体结构变异性的影响.
- 基于PFT的个性化Functionnectome证明了与标准化先验相比,优越的解剖学可信性和一致的白质道的识别.
- 个性化先验改善了结构功能映射的解剖学准确性和主体特异性.
结论:
- 个性化解剖学先验显著提高了Functionnectome框架的结构-功能映射的精度.
- 这种方法为患有脑瘤和相关疾病的患者提供了改进的神经成像洞察力.
- 该研究推进了用于临床应用和神经外科手术规划的精确神经成像.
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