1.Obstructive Sleep Apnea Screening Using a Piezo-Electric Sensor.
Urtnasan ERDENEBAYAR ; Jong Uk PARK ; Pilsoo JEONG ; Kyoung Joung LEE
Journal of Korean Medical Science 2017;32(6):893-899
In this study, we propose a novel method for obstructive sleep apnea (OSA) detection using a piezo-electric sensor. OSA is a relatively common sleep disorder. However, more than 80% of OSA patients remain undiagnosed. We investigated the feasibility of OSA assessment using a single-channel physiological signal to simplify the OSA screening. We detected both snoring and heartbeat information by using a piezo-electric sensor, and snoring index (SI) and features based on pulse rate variability (PRV) analysis were extracted from the filtered piezo-electric sensor signal. A support vector machine (SVM) was used as a classifier to detect OSA events. The performance of the proposed method was evaluated on 45 patients from mild, moderate, and severe OSA groups. The method achieved a mean sensitivity, specificity, and accuracy of 72.5%, 74.2%, and 71.5%; 85.8%, 80.5%, and 80.0%; and 70.3%, 77.1%, and 71.9% for the mild, moderate, and severe groups, respectively. Finally, these results not only show the feasibility of OSA detection using a piezo-electric sensor, but also illustrate its usefulness for monitoring sleep and diagnosing OSA.
Heart Rate
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Humans
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Mass Screening*
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Methods
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Sensitivity and Specificity
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Sleep Apnea, Obstructive*
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Sleep Wake Disorders
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Snoring
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Support Vector Machine