Diagnostic sensitivity of X-ray examination of the large bowel in colorectal cancer.

All individuals subjected to x-ray examination of the large bowel at Borgarspitalinn, Reykjavik, over the 5-year period 1975-1979 were matched against the files of the Icelandic Cancer Registry, 1955-1980 inclusively. The diagnostic accuracy was 84.9% and with additional proctoscopy the diagnostic accuracy was 92.5%.