Lower GI Series

Overview

A barium enema examination is a common procedure done to visualize the colon and rectum. The purpose is to detect polyps, inflammation, diverticula and changes in the colon. Barium is a liquid, which shows tissue structure of the colon separate from the other organs in the abdomen. The barium must be retained while a series of x-rays are taken. An air contrast barium enema uses an additional contrast, which is air. The procedure takes less than one hour.

Test Procedure

You will be asked to change into an x-ray gown for this procedure and lie on the x-ray table with the equipment positioned above you. A lubricated enema tip will be inserted into your rectum. A radiologist will use the x-ray equipment and watch as the barium flows into your colon. You will be asked to turn from side to side as the images are taken. For air contrast barium enema’s, the barium may be drained back into the enema bag after the colon has been coated and then air will be introduced into the colon to provide a double contrast (Barium and air). After a series of x-rays are completed, you will be allowed to go to the bathroom and expel the barium and air. You may notice evidence of barium in your stool for the next few days.