Up to one third of patients being tested with magnetic resonance imaging (MRI) scanners have felt so claustrophobic that the tests have had to be abandoned. ...
There are quite a few alternatives to barium enemas, the best known of which is colonoscopy. This involves passing a fibreoptic cable up into the colon to view the colonic wall. Colonoscopy is now rapidly supplanting barium enemas
What do they do?
Contrast agents are chemicals used to enhance medical and diagnostic images such as X-rays, and magnetic resonance imaging (MRI) and computed tomography (CT) scans.