Quantitative analysis of swallowing in postoperative patients with oral and maxillofacial diseases by videofluorometry

development of a simple system

Abstract

The development of home-use video systems and digital processing movie systems made it easy and inexpensive to set up a videofluorometry (VF) system for the evaluation of dysphagia.
We have set up a VF recording-analyzing system with the use of conventional high-resolution home video sets. We have recently introduced a new digital video recording system and computer-based analysis system, which is more convenient and provides higher-quality images.
We evaluated the quality of images, duration of oral stage, duration of pharyngeal stage, and duration of movement of the hyoid bone in patients after operation for tongue cancer.
Our digital video system is introduced in this paper.