An Accelerometer-Based Device for Sleep Apnea Screening

This paper presents a body-fixed-sensor-based approach to assess potential sleep apnea patients. A trial involving 15 patients at a sleep unit was undertaken. Vibration sounds were acquired from an accelerometer sensor fixed with a noninvasive mounting on the suprasternal notch of subjects resting i...

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Bibliographic Details
Published in:IEEE journal of biomedical and health informatics 2010-03, Vol.14 (2), p.491-499
Main Authors: Morillo, D.S., Ojeda, J.L.R., Foix, L.F.C., Jimenez, A.L.
Format: Article
Language:English
Subjects:
Acceleration
Accelerometers
Acoustic sensors
Adult
Aged
Biosensors
Body Mass Index
Digital signal processing
Electrocardiography
Female
Heart Rate
Heart rate variability
Humans
Male
Microphones
Middle Aged
Polysomnography - instrumentation
Polysomnography - methods
Respiration
Signal and image processing
Signal processing
Signal Processing, Computer-Assisted
Sleep apnea
Sleep Apnea Syndromes - diagnosis
Snoring
Testing
Vibration
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Summary:This paper presents a body-fixed-sensor-based approach to assess potential sleep apnea patients. A trial involving 15 patients at a sleep unit was undertaken. Vibration sounds were acquired from an accelerometer sensor fixed with a noninvasive mounting on the suprasternal notch of subjects resting in supine position. Respiratory, cardiac, and snoring components were extracted by means of digital signal processing techniques. Mainly, the following biomedical parameters used in new sleep apnea diagnosis strategies were calculated: heart rate, heart rate variability, sympathetic and parasympathetic activity, respiratory rate, snoring rate, pitch associated with snores, and airflow indirect quantification. These parameters were compared to those obtained by means of polysomnography and an accurate microphone. Results demonstrated the feasibility of implementing an accelerometry-based portable device as a simple and cost-effective solution for contributing to the screening of sleep apnea-hypopnea syndrome and other breathing disorders.
ISSN:1089-7771
2168-2194
1558-0032
2168-2208
DOI:10.1109/TITB.2009.2027231