[Indication and efficiency of computer tomography in urology].

Sonography and Computed tomography are exact methods of diagnosis in urology. They reproduce changes in the retroperitoneal space, especially of the kidney, adrenal gland, and lymph nodes. CT shows contours of the organ, density of tumor, and displacement of hollow system. Positive evidence is 85%-95%. Tumor staging in patients with testicular tumors is a further indication for CT. For primary diagnosis of a tumor of the urinary bladder and prostate CT is of no value, but processes passing across the organ boundaries can be seen. CT is important for the control of the process as well as for planning the X-ray therapy of this tumor.