Measurement system for swallowing based on impedance pharyngography and swallowing sound

Takao Nakamura, Y. Yamamoto, H. Tsugawa

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

5 Citations (Scopus)

Abstract

Swallowing disorders robs persons of pleasure of eating. The quality of life (QOL) of patients falls much. We propose simultaneous measurement, impedance pharyngography (IPG) and swallowing sound for evaluations of swallowing. IPG is based on neck electrical impedance, which is influenced by cross sectional area of near epiglottis. There was a problem which the changes of IPG did not match pharyngeal phase in some patients or the aged. The swallowing sound was measured with a microphone attaching on the neck. The components of higher than frequency 30 Hz in swallowing sound were made by bolus passing through pharynx. Therefore swallowing sound phase matched pharyngeal phase and reflected characteristics of bolus. The measurement of swallowing using IPG is improved with swallowing sound measurement. This method can be applied for diagnosis of swallowing disorders.

Original languageEnglish
Title of host publicationConference Record - IEEE Instrumentation and Measurement Technology Conference
PublisherIEEE
Pages191-194
Number of pages4
Volume1
Publication statusPublished - 2000
EventIMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control' - Baltimore, MD, USA
Duration: May 1 2000May 4 2000

Other

OtherIMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control'
CityBaltimore, MD, USA
Period5/1/005/4/00

Fingerprint

Acoustic impedance
Acoustic waves
impedance
acoustics
Acoustic variables measurement
Microphones
pharynx
eating
disorders
acoustic measurement
impedance measurement
electrical impedance
microphones
evaluation

ASJC Scopus subject areas

  • Instrumentation

Cite this

Nakamura, T., Yamamoto, Y., & Tsugawa, H. (2000). Measurement system for swallowing based on impedance pharyngography and swallowing sound. In Conference Record - IEEE Instrumentation and Measurement Technology Conference (Vol. 1, pp. 191-194). IEEE.

Measurement system for swallowing based on impedance pharyngography and swallowing sound. / Nakamura, Takao; Yamamoto, Y.; Tsugawa, H.

Conference Record - IEEE Instrumentation and Measurement Technology Conference. Vol. 1 IEEE, 2000. p. 191-194.

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

Nakamura, T, Yamamoto, Y & Tsugawa, H 2000, Measurement system for swallowing based on impedance pharyngography and swallowing sound. in Conference Record - IEEE Instrumentation and Measurement Technology Conference. vol. 1, IEEE, pp. 191-194, IMTC/2000 - 17th IEEE Instrumentation and Measurement Technology Conference 'Smart Connectivity: Integrating Measurement and Control', Baltimore, MD, USA, 5/1/00.
Nakamura T, Yamamoto Y, Tsugawa H. Measurement system for swallowing based on impedance pharyngography and swallowing sound. In Conference Record - IEEE Instrumentation and Measurement Technology Conference. Vol. 1. IEEE. 2000. p. 191-194
Nakamura, Takao ; Yamamoto, Y. ; Tsugawa, H. / Measurement system for swallowing based on impedance pharyngography and swallowing sound. Conference Record - IEEE Instrumentation and Measurement Technology Conference. Vol. 1 IEEE, 2000. pp. 191-194
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