A barium swallow is a type of test used to look inside the esophagus, or food pipe. A doctor might recommend this test if they need to look at the outline of any part of a person’s digestive system.

Barium is a white liquid that shows up clearly on an x-ray. Once it is inside the body, it coats the inside of the oesophagus , stomach or bowel. This then shows the outline of the organs on the x-ray ...

Fluoroscopy shows that on swallowing, the barium column moves down the esophagus. Such barium movement occurs largely due to passive forces in the esophagus and is very marked in the upright position.

Upper gastrointestinal series is the X-ray examination of the upper gastrointestinal tract that includes oesophagus, stomach, and the first part of the small intestine called the duodenum. The ...