Barium swallow. Definition

Medical Definition: Barium swallow

The process by which X-ray images taken of the esophagus or upper gastrointestinal tract (esophagus, stomach and duodenum). X-ray images are taken after the patient drinks a liquid containing barium sulfate (a form of the element barium silvery white). The barium sulfate coats and can see the outline of the inner walls of the esophagus and upper digestive tract so they can be seen in the X-ray images

* Automatic translation