LV-CadeNet: Long View Feature Convolution-Attention Fusion Encoder-Decoder Network for Clinical MEG Spike Detection

• URL: http://arxiv.org/abs/2412.08896v1
• Date: Thu, 12 Dec 2024 03:19:44 GMT
• Title: LV-CadeNet: Long View Feature Convolution-Attention Fusion Encoder-Decoder Network for Clinical MEG Spike Detection
• Authors: Kuntao Xiao, Xiongfei Wang, Pengfei Teng, Yi Sun, Wanli Yang, Liang Zhang, Hanyang Dong, Guoming Luan, Shurong Sheng,
• Abstract summary: We introduce LV-CadeNet, designed for automatic MEG spike detection in real-world clinical scenarios.<n>Our approach also mimics human specialists by constructing long view morphological input data.<n> LV-CadeNet significantly improves the accuracy of MEG spike detection, boosting it from 42.31% to 54.88% on a novel clinical dataset.
• Score: 5.140340328388902
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: It is widely acknowledged that the epileptic foci can be pinpointed by source localizing interictal epileptic discharges (IEDs) via Magnetoencephalography (MEG). However, manual detection of IEDs, which appear as spikes in MEG data, is extremely labor intensive and requires considerable professional expertise, limiting the broader adoption of MEG technology. Numerous studies have focused on automatic detection of MEG spikes to overcome this challenge, but these efforts often validate their models on synthetic datasets with balanced positive and negative samples. In contrast, clinical MEG data is highly imbalanced, raising doubts on the real-world efficacy of these models. To address this issue, we introduce LV-CadeNet, a Long View feature Convolution-Attention fusion Encoder-Decoder Network, designed for automatic MEG spike detection in real-world clinical scenarios. Beyond addressing the disparity between training data distribution and clinical test data through semi-supervised learning, our approach also mimics human specialists by constructing long view morphological input data. Moreover, we propose an advanced convolution-attention module to extract temporal and spatial features from the input data. LV-CadeNet significantly improves the accuracy of MEG spike detection, boosting it from 42.31\% to 54.88\% on a novel clinical dataset sourced from Sanbo Brain Hospital Capital Medical University. This dataset, characterized by a highly imbalanced distribution of positive and negative samples, accurately represents real-world clinical scenarios.

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