[Value of CT following surgery for rectal cancer (a prospective study)].

The results of computed tomography of 48 patients after operation on rectal carcinoma who underwent close-meshed computer tomographic examinations are given in a prospective study. (First examination 6 weeks after operation, further examinations at intervals of 3 months, mean observation time: 12 months). The results of follow-up by means of computer tomographic examination are compared with clinical examinations and control of CEA levels. The use of computer tomographic examination resulted in 43 confirmed negative, 3 confirmed positive and 2 false negative findings (including cases with CT-aided fine needle biopsy). These results give an accuracy of 96% and thus exceed clinical examination and controls of CEA-level. How far early diagnosis of local recurrence of rectal cancer influences survival time, can be answered after completion of this study in the next few years.