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11/14/15

double contrast enema

The double contrast enema - Radiologic investigation (see radiology) of the intestine (the main part of the digestive tract). A contrast medium (a substance opaque to X-rays) is introduced into the passage or cavity to be examined.

The area is then distended (widened) by the introduction of air. A thin coating of the contrast medium is left on the walls of the intestine. As a result, the area to be examined is shown in outline on X-ray images. (See also barium X-ray examinations.)

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