A barium enema is a medical imaging technique used to visualize the large intestine or colon
. It is used to identify anomalies in the terminal part of the digestive tract. A contrast agent, barium, is injected through the natural channels of the patient and makes the colon opaque, and is then X-rayed. X-rays
allow a study of the large intestine and a search for inflammation
, the presence of polyps
. Barium is also used to opacify other organs, including the ones in the digestive tract: this is the case in a barium meal or upper gastrointestinal series, where barium is ingested by the patient and allows the study of the upper gastrointestinal tract.
Published by Jeff
Latest update on December 11, 2013 at 04:53 AM by Jeff.