Thyroid cartilage loci and hyoid bone analysis using a video fluoroscopic swallowing study (VFSS).

Introduction: Hyoid bone movement can be useful for diagnosing oropharyngeal dysphagia. In most clinical settings, the movement can be evaluated by a video fluoroscopic swallowing study (VFSS) that induces radiation exposure. In contrast with the hyoid bone, the thyroid cartilage is easily seen through the anterior neck surface.