A thorough, well-conducted radiologic examination of the large intestine represents a major diagnostic procedure in terms of technical and professional effort. If the considerable blocks of productive time which a radiologist must set aside for this one form of activity, as well as the time of technical assistants and the tying up of apparatus for considerable periods, are to be considered justifiable, it follows that the end-results of the procedure must constitute diagnostic assistance of great magnitude. From time to time it is necessary for the radiologist to reassure himself that the large expenditures of time and effort are truly worth while. A review of activities in the diagnostic division of the department of roentgenology at the University of Michigan for the five-year period July 1, 1944, to June 30, 1949, provides an opportunity to scrutinize in retrospect the clinical end-results of a considerable expenditure of effort in examinations of
Hodges FJ, MacMillan HC. IMPORTANT CLINICAL DIVIDENDS FROM X-RAY EXAMINATION OF THE COLON. JAMA. 1951;147(13):1191–1194. doi:10.1001/jama.1951.03670300005002
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