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ABSTRACT: Objectives
Electroencephalography (EEG) is a central part of the medical evaluation for patients with neurological disorders. Training an algorithm to label the EEG normal vs abnormal seems challenging, because of EEG heterogeneity and dependence of contextual factors, including age and sleep stage. Our objectives were to validate prior work on an independent data set suggesting that deep learning methods can discriminate between normal vs abnormal EEGs, to understand whether age and sleep stage information can improve discrimination, and to understand what factors lead to errors.Methods
We train a deep convolutional neural network on a heterogeneous set of 8522 routine EEGs from the Massachusetts General Hospital. We explore several strategies for optimizing model performance, including accounting for age and sleep stage.Results
The area under the receiver operating characteristic curve (AUC) on an independent test set (n = 851) is 0.917 marginally improved by including age (AUC = 0.924), and both age and sleep stages (AUC = 0.925), though not statistically significant.Conclusions
The model architecture generalizes well to an independent dataset. Adding age and sleep stage to the model does not significantly improve performance.Significance
Insights learned from misclassified examples, and minimal improvement by adding sleep stage and age suggest fruitful directions for further research.
SUBMITTER: van Leeuwen KG
PROVIDER: S-EPMC6309707 | biostudies-literature | 2019 Jan
REPOSITORIES: biostudies-literature
van Leeuwen K G KG Sun H H Tabaeizadeh M M Struck A F AF van Putten M J A M MJAM Westover M B MB
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology 20181117 1
<h4>Objectives</h4>Electroencephalography (EEG) is a central part of the medical evaluation for patients with neurological disorders. Training an algorithm to label the EEG normal vs abnormal seems challenging, because of EEG heterogeneity and dependence of contextual factors, including age and sleep stage. Our objectives were to validate prior work on an independent data set suggesting that deep learning methods can discriminate between normal vs abnormal EEGs, to understand whether age and sle ...[more]