[Radiological methods in diagnosis of colitis (author's transl)].

Short reference is made to the problem of preparing the colon for x-ray examination when colitis is suspected. The optimal roentgenologic examination technique of the colon is demonstrated. This technique requires: multiple large survey films (35 by 43 cm) of the colon - filled with barium and post evacuation; the focal film distance should be at least 150 cm; in addition, double contrast studies with air as well as spot films of the entire rectal and sigmoid area to prevent overlapping of bowel loops. The diagnostic and technical failures of colonoscopy are pointed out but its value as a supplementary examination is emphasized and recognized.