1Department of Surgery, Division of Neurosurgery, University of Toronto.
5Krembil Centre for Neuroinformatics, Centre for Addiction & Mental Health, Toronto, Ontario, Canada.
J Neurosurg. 2023 Jun 23;140(1):218-230. doi: 10.3171/2023.5.JNS23250. Print 2024 Jan 1.
A major goal of modern neurosurgery is the personalization of treatment to optimize or predict individual outcomes. One strategy in this regard has been to create whole-brain models of individual patients. Whole-brain modeling is a subfield of computational neuroscience that focuses on simulations of large-scale neural activity patterns across distributed brain networks. Recent advances allow for the personalization of these models by incorporating distinct connectivity architecture obtained from noninvasive neuroimaging of individual patients. Local dynamics of each brain region are simulated with neural mass models and subsequently coupled together, considering the subject's empirical structural connectome. The parameters of the model can be optimized by comparing model-generated and empirical data. The resulting personalized whole-brain models have translational potential in neurosurgery, allowing investigators to simulate the effects of virtual therapies (such as resections or brain stimulations), assess the effect of brain pathology on network dynamics, or discern epileptic networks and predict seizure propagation in silico. The information gained from these simulations can be used as clinical decision support, guiding patient-specific treatment plans. Here the authors provide an overview of the rapidly advancing field of whole-brain modeling and review the literature on neurosurgical applications of this technology.
现代神经外科学的一个主要目标是实现治疗的个体化,以优化或预测个体的结果。在这方面的一个策略是为个体患者创建全脑模型。全脑建模是计算神经科学的一个分支,专注于对分布式脑网络中大规模神经活动模式的模拟。最近的进展允许通过纳入从个体患者的非侵入性神经影像学获得的独特连接结构来实现这些模型的个性化。使用神经质量模型模拟每个脑区的局部动力学,然后考虑主体的经验结构连接组,将它们耦合在一起。通过比较模型生成的数据和经验数据来优化模型的参数。由此产生的个性化全脑模型在神经外科中具有转化潜力,允许研究人员模拟虚拟治疗(如切除术或脑刺激)的效果,评估脑病理学对网络动力学的影响,或辨别癫痫网络并在计算中预测癫痫发作的传播。从这些模拟中获得的信息可用作临床决策支持,指导针对特定患者的治疗计划。本文作者提供了全脑建模领域的快速发展概述,并回顾了该技术在神经外科应用的文献。
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