What are advantages of double contrast over single contrast in barium enema procedure?
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A 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.[1] A liquid containing barium (that is, a radiocontrast agent) 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 also put into the rectum and colon to further enhance the x-ray. Double-contrast barium enemas are less invasive than a colonoscopy and have comparatively fewer issues in a viable large bowel.[2] See also[edit]
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What are advantages of double contrast study?The principal advantage of the resulting double-contrast examination is that it often demonstrates small gastric abnormalities not visible on convenconventional films, particularly mucosal irregularities such as superficial gastric cancers (1), shallow ulcers, ulcer scars (2), and the mucosal changes of gastritis (3).
What is the difference between single and double contrast barium enemas?There are two types of barium enemas. In a single-contrast study, the colon is filled with barium. This outlines the intestine and shows large abnormalities. In a double-contrast or air-contrast study, the colon is first filled with barium, and then the barium is drained out.
What is the purpose of a double contrast barium enema?The 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.
Is barium enema double contrast?During a barium enema exam, air may be pumped into the colon. The air expands the colon and improves the quality of images. This is called an air-contrast (double-contrast) barium enema.
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