double-contrast barium enema
Meaning of 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.
Definition of 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 put into the rectum and colon to further enhance the x-ray.