In videofluoroscopic swallowing, recording images in the AP view is best for which purpose?

• A. Optimal visualization of epiglottic inversion
• B. Optimal visualization of bilateral pharyngeal movement and stasis
• C. Optimal visualization of aspiration
• D. Optimal visualization of the base of the tongue and posterior pharyngeal wall movement

Answer: (B)

AP view in videofluoroscopy is used to compare the left and right sides of the pharynx at once, making it the best way to assess whether pharyngeal constrictor movement is symmetric and whether residual material is present on both sides. This bilateral perspective helps detect unilateral weakness or asymmetry that could be missed on a single-sided view.

Other aspects of swallowing, like epiglottic inversion, aspiration, and the movement of the base of the tongue with the posterior pharyngeal wall, rely more on depth and front-to-back relationships that are more clearly seen in the lateral view. So while you can glean some information about those components, the AP view is most informative for evaluating bilateral pharyngeal movement and stasis.