double contrast

a technique usually used in X-ray examinations of the bowel. Barium sulphate contrast medium is used to coat the bowel wall. The bowel is then distended with gas. The X-ray images obtained give exquisite detail of the lining of the gut. See also barium enema, barium meal.

Medical dictionary. 2011.

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  • double-contrast — dou·ble con·trast (dubґəl konґtrast) pertaining to diagnostic imaging techniques in which two contrast media, such as a radiopaque medium with air or gas or iron oxide with a paramagnetic medium, are used in combination to enhance detail …   Medical dictionary

  • double contrast — a technique usually used in X ray examinations of the bowel. Barium sulphate contrast medium is used to coat the bowel wall. The bowel is then distended with gas. The X ray images obtained give exquisite detail of the lining of the gut. See also …   The new mediacal dictionary

  • Double-contrast barium enema — 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 …   Wikipedia

  • double-contrast enema — injection and evacuation of a suspension of barium, followed by inflation of the intestines with air under light pressure; used in mucosal relief radiography …   Medical dictionary

  • double-contrast radiography — mucosal relief r …   Medical dictionary

  • double-contrast barium enema — 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… …   English dictionary of cancer terms

  • double contrast enema — noun : barium enema …   Useful english dictionary

  • contrast medium — n a substance (as a solution of iodine or suspension of barium sulfate) comparatively opaque to X rays that is introduced into the body (as by injection or swallowing) to contrast an internal part (as the gastrointestinal tract, kidneys, or blood …   Medical dictionary

  • contrast medium — contrast agent a substance administered to enhance the visibility of structures (i.e. increase the contrast) during imaging. In radiography a positive contrast agent (e.g. barium sulphate or a water soluble iodine containing compound) increases… …   The new mediacal dictionary

  • Double Indemnity (film) — Double Indemnity Theatrical release poster Directed by Billy Wilder Produced by …   Wikipedia

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