Barium enema

To visualize the colon, a barium enema is used, delivering barium directly into the colon through a short tube placed in the anus. After taking barium, your feces will turn pale and chalky looking for a few days and may be difficult to flush away.

Barium studies have recently become less common for IBD due to the widespread availability of CT and MRI imaging (see below). CT and MRI offer the advantage of greater detail and information beyond the inner lining of the bowel (such as fistula or abscesses).