[The use of fluorography in the diagnosis of tumors of the large intestine].

A current approach to the perfection of the diagnosis of colonic tumors is proposed in patients at risk by means of introduction into the ambulatory health care system (polyclinics, diagnostic centers) of standardized colonic fluorography followed by endoscopy in necessary cases. The main organizational and methodological principles of the use of colonic fluorography were worked out as a method of screening to reveal colonic tumors. It is suggested that such new elements as the "prescopic stage" realized outside the radiation zone, automated distant air inflation into the colon and so forth may be introduced in colonic fluorographic examination. Experience gained with over 2065 colonic fluorographies on a special fluorograph and 1120 examinations on routine x-ray diagnostic units fitted with the amplifier and a photochannel (79 cases of colonic carcinoma and 89 benign tumors were identified) evidences that the program of making colonic fluorography enables one to significantly improve the diagnosis of colonic tumors.