Which organ is typically imaged using a double contrast procedure?
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What is a doubleThe Double-Contrast Barium Enema (also called DCBE or barium enema) uses X-rays to find abnormal growths in the colon. Barium, a silver-white metallic compound, is used to outline the colon and rectum on the X-ray. Air is then passed through the same tube to further enhance the X-ray.
What is doubleA double-contrast barium enema is a form of contrast radiography in which x-rays of the colon and rectum are taken using two forms of contrast to make the structures easier to see. A liquid containing barium (that is, a radiocontrast agent) is put into the rectum.
Why is doubleThe 'double contrast' refers to the use of positive and negative contrast agents to increase the sensitivity of the examination. The double contrast study is sensitive to visualize mucosal irregularities.
What contrast is used for digestive tract?Barium sulfate can be used as a single contrast agent in the gastrointestinal tract; it can also be used for positive contrast in studies that use air for negative contrast (double-contrast examinations). Barium sulfate can be used to opacify the GI tract in preparation for computerized tomography of the abdomen.
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