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 ...

A barium x-ray is a test to look at the outline of any part of your 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 ...