Interpreting the Sounds of Swallowing: Fluid Flow through the Cricopharyngeus
- 1 September 1990
- journal article
- research article
- Published by SAGE Publications in Annals of Otology, Rhinology & Laryngology
- Vol. 99 (9), 749-752
- https://doi.org/10.1177/000348949009900916
Abstract
The sounds of swallowing in normal subjects were recorded by means of a miniature accelerometer on the throat, simultaneously with videofluoroscopy of a modified barium swallow. Consistent correspondence was found between a rapid change in the acoustic spectrum of the accelerometer signal (the appearance of a region of energy prominence above 1,000 Hz) and bolus flow through the cricopharyngeus.Keywords
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