[The role of computer tomography in staging of carcinomas of the bladder (author's transl)].

Carcinomas of the bladder can be demonstrated in various ways, such as examination with contrast medium before and after micturition, and filling with CO2 as suggested by Seidelmann. The procedure should be chosen depending on one's aim. We examined patients who had already been diagnosed when the bladder was full of urine, in order to confirm doubtful findings, and after micturition in order to demonstrate the smallest volume to which radiotherapy can be given. Computer tomography has proved valuable; in 33% of 54 patients staging had to be revised upwards.