A FPGA-based wearable ultrasound device for monitoring obstructive sleep apnea syndrome

Chi Kai Weng, Jeng Wen Chen, Chih Chung Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Obstructive sleep apnea (OSA), a breathing disorder characterized by repetitive collapse of the pharyngeal airway during sleep, can cause intermittent hypoxemia and frequent arousal. Many studies have demonstrated that the deformation of tongue base plays an important role in OSA. Currently, several medical imaging modalities have been used to record the airway changes, such as cine MRI and ultrafast CT. However, most of them are difficult to be used widely in clinical diagnosis for continuous recording the deformation of tongue in real-time, particularly during sleeping. In order to overcome these problems, a wearable ultrasonic device was developed for real-time monitor of the dynamic change of the tongue base in this study. The device includes a custom-designed 3.5-MHz ultrasonic array transducer, an ultrasound pulser/receiver, high-speed analog-to-digital converter, high speed digital I/O, and a FPGA board. The ultrasound pulse repetition frequency and pulse center frequency were controlled by the programmable FPGA board. The anthropometric measurement was carried out for verifying the system performance. Results demonstrated that the dynamic variation of tongue base can be clearly distinguished by using this wearable ultrasound.

Original languageEnglish
Title of host publication2015 IEEE International Ultrasonics Symposium, IUS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479981823
DOIs
Publication statusPublished - 2015 Nov 13
EventIEEE International Ultrasonics Symposium, IUS 2015 - Taipei, Taiwan
Duration: 2015 Oct 212015 Oct 24

Publication series

Name2015 IEEE International Ultrasonics Symposium, IUS 2015

Other

OtherIEEE International Ultrasonics Symposium, IUS 2015
CountryTaiwan
CityTaipei
Period15-10-2115-10-24

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

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    Weng, C. K., Chen, J. W., & Huang, C. C. (2015). A FPGA-based wearable ultrasound device for monitoring obstructive sleep apnea syndrome. In 2015 IEEE International Ultrasonics Symposium, IUS 2015 [7329521] (2015 IEEE International Ultrasonics Symposium, IUS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ULTSYM.2015.0515