Barium Swallow: the hypopharynx & cervical esophagus (cont.)
The AP Projection
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Repeat the rapid
sequence (4/sec) recording procedure as
for the lateral view but with the patient in the AP projection. Make sure that the patient is in a true AP projection.
Also, make sure that the patient's chin is elevated enough that the valleculae are not hidden by the mandible.
Use 12" FOV.
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Obtain a single AP spot image of the
distended hypopharynx, while the patient phonates "EEEEE'. Zoom to 6" or 9" FOV.
| AP view of the barium-coated pharynx and hypopharynx obtained during phonation demonstrates normal anatomy but also aspiration of barium into the larynx and trachea.
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