An attempt of swallowing frequency measurement by using portable monitoring system

Mitsuhiro Ogawa, Keiichiro Shindo, Shin Ichi Izumi

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

Abstract

Because a low frequency of swallowing may lead to a worsening of oral aseptic conditions, it is considered necessary to maintain a normal frequency of swallowing to prevent aspiration pneumonia. We have measured the frequency of swallowing during the night using a portable sound recording system consisting of an IC recorder and a piezoelectric microphone. Using this system, the sounds of swallowing from the gular region were recorded from 2 subject and their sleepings. Recording sounds were clear and having little environmental noise The sound of swallowing was detected using an algorithm employing two digital Butterworth band pass filters. As a result, the frequency of swallowing during sleep was obtained. The developed system shows promise in the non-invasive measurement of the frequency of swallowing.

Original languageEnglish
Title of host publicationProceedings of the 3rd IASTED International Conference on Biomedical Engineering 2005
EditorsM.H. Hamza
Pages462-467
Number of pages6
Publication statusPublished - 2005
Event3rd IASTED International Conference on Medical Engineering 2005 - Innsbruck, Austria
Duration: 2005 Feb 162005 Feb 18

Publication series

NameProceedings of the 3rd IASTED International Conference on Biomedical Engineering 2005

Other

Other3rd IASTED International Conference on Medical Engineering 2005
CountryAustria
CityInnsbruck
Period05/2/1605/2/18

Keywords

  • Aspiration pneumonia
  • Frequency of swallowing
  • Swallowing sound
  • Time-frequency analysis

ASJC Scopus subject areas

  • Engineering(all)

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