Noninvasive aspiration detection using through-transmission ultrasound

Yosuke Hara, Yukio Katori, Shigeaki Okumura, Hirofumi Taki, Hiroki Umeda, Tatsuya Uechi, Fumihiko Kawamura, Yoichi Haga, Ryoichi Nagatomi, Shin Ichi Izumi

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

Abstract

We investigate the potential of through-transmission ultrasound in noninvasive aspiration detection for bedside rehabilitation. In the present study, we used through- transmission ultrasound to investigate the waveform change in received signals caused by an aspirated object located at the posterior wall of the larynx, the most difficult type of case in the detection of aspiration. In a simulation study based on an X-ray CT image of the neck of a patient, the aspirated object adhered at the posterior wall of the larynx resulted in the waveform change of the received signal with a maximum amplitude of 4.3% compared with that of the received signal with aspiration. In an experimental study using a swine larynx ex vivo, an aspirated object resulted in the waveform change of the received signal with a maximum amplitude of 43.3%. These results indicate the high potential of through-transmission ultrasound in aspiration detection.

Original languageEnglish
Title of host publication2018 IEEE 20th International Conference on e-Health Networking, Applications and Services, Healthcom 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538642948
DOIs
Publication statusPublished - 2018 Nov 9
Event20th IEEE International Conference on e-Health Networking, Applications and Services, Healthcom 2018 - Ostrava, Czech Republic
Duration: 2018 Sep 172018 Sep 20

Publication series

Name2018 IEEE 20th International Conference on e-Health Networking, Applications and Services, Healthcom 2018

Other

Other20th IEEE International Conference on e-Health Networking, Applications and Services, Healthcom 2018
CountryCzech Republic
CityOstrava
Period18/9/1718/9/20

Keywords

  • aspiration
  • component
  • dysphagia
  • through- transmission ultrasound

ASJC Scopus subject areas

  • Health(social science)
  • Signal Processing
  • Health Informatics
  • Computer Networks and Communications
  • Computer Science Applications
  • Hardware and Architecture

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