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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/19018

Title: Hyolaryngeal Excursion as the Physiological Source of Accelerometry Signals during Swallowing
Authors: Zoratto, Dana Christine Bech-Hansen
Advisor: Chau, Tom
Steele, Catriona
Department: Biomedical Engineering
Keywords: hyolaryngeal excursion
Issue Date: 18-Feb-2010
Abstract: Swallowing dysfunction, or dysphagia, can result from any structural or neurological impairment that affects the swallowing mechanism. Accelerometry is a non-invasive technique that may be used to measure the epidermal vibration signals on a patient’s throat during swallowing. The purpose of this study was to map out the trajectories of the hyoid bone and arytenoids during swallowing to determine if a relationship exists between their trajectories and the signals obtained from an accelerometer placed on a participant’s neck during a scheduled videofluoroscopic swallowing study. Participants included 43 adult patients with neurogenic dysphagia. A software program was created to track the desired anatomy on the videofluoroscopic videos frame-by-frame. The data from the software was then compared to the integrated acceleration data multiple linear regression. The results show that the hyoid and larynx are not always correlated during swallowing and further suggest hyolaryngeal excursion as the primary physiological source of accelerometry.
URI: http://hdl.handle.net/1807/19018
Appears in Collections:Master
Institute of Biomaterials and Biomedical Engineering - Master theses

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