Merck Manual

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Barium Swallow: Fluoroscopy
Barium Swallow: Fluoroscopy
Barium Swallow: Fluoroscopy

Fluoroscopy (a continuous x-ray technique) is used to view the esophagus after a person swallows liquid barium. The esophagus can be seen contracting as barium passes through it and into the stomach and small intestine.

Courtesy of Howard Lee, MD.