arXiv:2502.15198cs.LGeess.SP2025-02被引 3

用图神经网络分析脑电数据,预测癫痫患者是否能摆脱发作。

Graph-Based Deep Learning on Stereo EEG for Predicting Seizure Freedom in Epilepsy Patients

  • 构建图卷积模型,融合多尺度注意力捕捉复杂脑区连接。
  • 在15名患儿数据上,二分类准确率达92.4%,患者级分析达86.6%。
  • 识别出前扣带和额极为关键区域,与发作起始区高度重合。

精准预测癫痫患者的发作自由状态对个体化治疗至关重要,但传统方法在异质人群中的表现仍不理想。本研究基于15名难治性癫痫患儿的高质量立体脑电(sEEG)数据,构建深度学习图神经网络(GNN)模型,以预测发作自由结局。模型通过图卷积与多尺度注意力机制,整合局部与全局脑区连接信息,有效建模如丘脑与运动区等难以研究区域间的关联。在二分类分析中准确率达92.4%,患者级分析达86.6%,多分类分析达81.4%。节点与边级特征分析表明,前扣带皮层与额极是影响发作自由的关键区域,且模型识别节点更易定位发作起始区。结果表明,基于连接性的GNN模型可显著提升发作自由预测、发作起始区定位及脑网络分析能力,为人工智能辅助个性化癫痫治疗提供新路径。

原文摘要 · Abstract (English)

Predicting seizure freedom is essential for tailoring epilepsy treatment. But accurate prediction remains challenging with traditional methods, especially with diverse patient populations. This study developed a deep learning-based graph neural network (GNN) model to predict seizure freedom from stereo electroencephalography (sEEG) data in patients with refractory epilepsy. We utilized high-quality sEEG data from 15 pediatric patients to train a deep learning model that can accurately predict seizure freedom outcomes and advance understanding of brain connectivity at the seizure onset zone. Our model integrates local and global connectivity using graph convolutions with multi-scale attention mechanisms to capture connections between difficult-to-study regions such as the thalamus and motor regions. The model achieved an accuracy of 92.4% in binary class analysis, 86.6% in patient-wise analysis, and 81.4% in multi-class analysis. Node and edge-level feature analysis highlighted the anterior cingulate and frontal pole regions as key contributors to seizure freedom outcomes. The nodes identified by our model were also more likely to coincide with seizure onset zones. Our findings underscore the potential of new connectivity-based deep learning models such as GNNs for enhancing the prediction of seizure freedom, predicting seizure onset zones, connectivity analysis of the brain during seizure, as well as informing AI-assisted personalized epilepsy treatment planning.

癫痫预测图神经网络脑电分析个性化医疗

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