arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2208.02405eess.SP
收藏

Transformer卷积神经网络用于头皮EEG的自动检测

Transformer Convolutional Neural Networks for Automated Artifact Detection in Scalp EEG

Wei Yan Peh, Yuanyuan Yao, Justin Dauwels

摘要:

众所周知,脑电图(EEG)经常包含由于肌肉活动,眨眼和各种其他原因造成的伪影。检测这些伪影是正确解释EEG的重要第一步。虽然已经有很多努力致力于半自动和自动化的伪影检测EEG,伪影检测的问题仍然具有挑战性。在本文中,我们提出了一个卷积神经网络(CNN)增强Transformers使用信念匹配(BM)损失的自动检测五种类型的文物:咀嚼,电极弹出,眼球运动,肌肉和颤抖。具体来说,我们应用这五个检测器在个别EEG通道,以区分文物从背景EEG。接下来,对于这五种类型的伪影中的每一种,我们结合这些通道检测器的输出来检测多通道EEG段中的伪影。这些分段级分类器可以分别以0.947、0.735、0.826、0.857和0.655的平衡准确度(BAC)检测咀嚼、电极弹出、眼球运动、肌肉和颤抖伪影的特定伪影。最后,我们结合五个分段级检测器的输出来执行组合的二进制分类(任何伪影与背景)。所得到的检测器分别在95%、97%和99%的特异性(SPE)下实现60.4%、51.8%和35.5%的灵敏度(SEN)。该伪影检测模块可以拒绝伪影片段,同时仅去除背景EEG的一小部分,从而产生更干净的EEG以供进一步分析。

英文摘要:

It is well known that electroencephalograms (EEGs) often contain artifacts due to muscle activity, eye blinks, and various other causes. Detecting such artifacts is an essential first step toward a correct interpretation of EEGs. Although much effort has been devoted to semi-automated and automated artifact detection in EEG, the problem of artifact detection remains challenging. In this paper, we propose a convolutional neural network (CNN) enhanced by transformers using belief matching (BM) loss for automated detection of five types of artifacts: chewing, electrode pop, eye movement, muscle, and shiver. Specifically, we apply these five detectors at individual EEG channels to distinguish artifacts from background EEG. Next, for each of these five types of artifacts, we combine the output of these channel-wise detectors to detect artifacts in multi-channel EEG segments. These segment-level classifiers can detect specific artifacts with a balanced accuracy (BAC) of 0.947, 0.735, 0.826, 0.857, and 0.655 for chewing, electrode pop, eye movement, muscle, and shiver artifacts, respectively. Finally, we combine the outputs of the five segment-level detectors to perform a combined binary classification (any artifact vs. background). The resulting detector achieves a sensitivity (SEN) of 60.4%, 51.8%, and 35.5%, at a specificity (SPE) of 95%, 97%, and 99%, respectively. This artifact detection module can reject artifact segments while only removing a small fraction of the background EEG, leading to a cleaner EEG for further analysis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑