We report here a new technique, computerized radiology of the colon. This technique consists of digital radiography of the colon combined with colon CT utilizing only air as a contrast agent. This technique is capable of detection of very small polyps. It is also useful in the study of diverticulitis of the colon. Comparison between CT and radiographic air contrast barium enema is demonstrated. In one case, a 13-yr-old girl who underwent total colectomy for familial polyposis, the surgical pathologic findings are also shown. Future potential of the technique is discussed including use as a mass screening method.
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