Related Experiment Video
Updated: Jan 31, 2026

Coordinate Mapping of Hyolaryngeal Mechanics in Swallowing
Published on: May 6, 2014
Improvements resulting from respiratory-swallow phase training visualized in patient-specific computational analysis
Thi Tu Anh Tran1, Bonnie Martin Harris2, William G Pearson3
1Medical College of Georgia, Georgia Regents University, Augusta, GA, USA.
Abstract:
The aim of this study was to visualize improved swallowing mechanics resulting from respiratory-swallow phase training using patient specific computational analysis of Modified Barium Swallow (MBS) videofluoroscopic images. Imaging from a single subject showing improved MBSImP™© scores in 17 of 18 pre- to post-treatment swallows was selected for analysis. Using a semi-automated MATLAB tracker tool, a frame-by-frame annotation of 10 coordinates mapping muscle functional groups was performed during oropharyngeal swallowing. Computational analysis of coordinate shape change was executed using MorphoJ software to determine differences in swallowing mechanics associated with multiple independent variables. Canonical variant analysis indicated significant differences in mechanics associated with respiratory-swallow phase training (D=1.92,p<.0001). Vectors allowed for visualization of changes in swallowing mechanics associated with respiratory-swallow phase training. A regression of shape associated with laryngeal vestibular closure on respiratory-swallow phase training was highly significant (p<.0001) and accounted for 94.1% of the variance.
More Related Videos
Related Concept Videos
Upper GI Series: Barium Swallow
Purpose and Procedure
Patients undergoing this procedure ingest a liquid containing barium sulfate with a chalky...
Conservative Site-specific Recombination and Phase Variation
The recognition sites for Cre recombinase called LoxP...
Phase Diagrams
Anatomy of Respiratory System II: Lower Respiratory Tract
The Larynx
It is located between the pharynx and the trachea, acts as a passageway for air, and hosts several critical structures, such as the epiglottis, vocal cords, and glottis. The epiglottis acts as a gateway, guiding food to the...
Phase Transitions
The Respiratory System

