2.5.4. Evaluation of VF.
VF, Esophageal stage, expectoration
ASPIRATION, DISEASES, TRANSITION, TONGUE, SOFT PALATE
The evaluation of the VF has not yet been established. The VF findings will be described from the perspective below.Oral stage.The contrast medium is kept in oral.Transition of the contrast medium from oral to pharyngeal.Pharyngeal stage.Soft palate elevation and velopharyngeal function.The residual of the contrast medium at the vallecula and piriform sinuses.Aspiration and expectoration.Laryngeal elevation.Laryngeal closure.Pharyngoesophageal Segment Opening.Tongue Base Retraction.Esophageal stage.Esophageal clearance and peristalsis.Counterflow in the esophagus.Diseases of and around the esophagus.