Double-contrast barium enema

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A double-contrast barium enema is a procedure in which x-rays of the colon and rectum are taken after a liquid containing barium is put into the rectum. Barium is a silver-white metallic compound that outlines the colon and rectum on an x-ray and helps show abnormalities. Air is put into the rectum and colon to further enhance the x-ray.

[edit] See also

• Contrast agent

[edit] External links

• Double-contrast barium enema entry in the public domain NCI Dictionary of Cancer Terms

This article includes text from the U.S. National Cancer Institute's public domain Dictionary of Cancer Terms