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Deep learning for sleep analysis on children with sleep-disordered breathing: Automatic detection of mouth breathing
Jóna Elísabet Sturludóttir1,2,3, Sigríður Sigurðardóttir2, Marta Serwatko2,4
1Department of Computer Science, Reykjavik University, Reykjavík, Iceland.
Insights
Researchers developed a deep learning algorithm to automatically detect mouth breathing in children using polysomnography (PSG) data. This method shows promise for diagnosing sleep-disordered breathing (SDB) and obstructive sleep apnea (OSA) in pediatric patients.
Area of Science:
- Pediatric Sleep Medicine
- Artificial Intelligence in Healthcare
- Biomedical Signal Processing
Background:
- Sleep-disordered breathing (SDB) in children, including habitual snoring and obstructive sleep apnea (OSA), often involves mouth breathing.
- Mouth breathing as an SDB indicator in children is frequently overlooked and inconsistently diagnosed.
- Accurate detection of mouth breathing is crucial for timely SDB diagnosis and management in pediatric populations.
Purpose of the Study:
- To develop and evaluate a deep learning algorithm for the automatic detection of mouth breathing events in children.
- To utilize polysomnography (PSG) data, specifically mouth and nasal pressure signals, for identifying mouth breathing.
- To assess the performance of a convolutional neural network (CNN) model in classifying mouth breathing events.
Main Methods:
- Polysomnography (PSG) recordings from 20 children (aged 10-13 years) were analyzed.
- Mouth and nasal pressure signals from PSG were extracted and processed.
- Convolutional neural networks (CNNs) were employed to identify and classify mouth breathing events.
Main Results:
- The deep learning model achieved 93.5% accuracy and 97.8% precision on validation data.
- The model demonstrated an 89% true positive rate and a 2% false positive rate.
- Performance decreased on a secondary dataset, suggesting the need for larger training data.
Conclusions:
- Deep neural networks show significant potential for analyzing and classifying biological signals in sleep studies.
- Machine learning offers a valuable tool for enhancing sleep analysis and SDB diagnosis in children.
- Further development with larger datasets is recommended to improve model generalizability.
Introduction:
Sleep-disordered breathing (SDB) can range from habitual snoring to severe obstructive sleep apnea (OSA). A common characteristic of SDB in children is mouth breathing, yet it is commonly overlooked and inconsistently diagnosed. The primary aim of this study is to construct a deep learning algorithm in order to automatically detect mouth breathing events in children from polysomnography (PSG) recordings.
Methods:
The PSG of 20 subjects aged 10-13 years were used, 15 of which had reported snoring or presented high snoring and/or high OSA values by scoring conducted by a sleep technologist, including mouth breathing events. The separately measured mouth and nasal pressure signals from the PSG were fed through convolutional neural networks to identify mouth breathing events.
Results:
The finalized model presented 93.5% accuracy, 97.8% precision, 89% true positive rate, and 2% false positive rate when applied to the validation data that was set aside from the training data. The model's performance decreased when applied to a second validation data set, indicating a need for a larger training set.
Conclusion:
The results show the potential of deep neural networks in the analysis and classification of biological signals, and illustrates the usefulness of machine learning in sleep analysis.
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