[Value of sonography, computed tomography and angiography in adrenal diagnosis].

Between 1979 and 1982, 47 patients with pathological process of the adrenals were surgically treated after preceding thorough non-evasive angiographic diagnosis (6 phaeochromocytomas, 20 adrenal adenomas, 8 adrenal hyperplasias, 5 adrenal carcinomas, 5 adrenal cysts and 3 adrenal metastases). The most consistently accurate results were obtained via adrenal phlebography with an accuracy of 94%. This was followed by non-evasive computed tomography (87%).

Stereotactic biopsy using computed tomography.

A stereotactic apparatus for percutaneous needle biopsy under computed tomographic (CT) control is described. A program was developed that allows the transfer of CT data to the stereotactic apparatus. No artifacts of the CT images are caused by the stereotactic apparatus.

[Computer tomographic diagnosis of lung abscess and pleural empyema].

Lung abscesses are characterised by irregular air spaces with non-homogeneous necrosis. Pleural empyemas often assume a sickle shape up against the thoracic wall and tend to be homogeneous. Problems in differential diagnosis may occur if the process is not confined to an exact anatomic position.

[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 tomographic staging of prostatic carcinomas (author's transl)].

The diagnosis of carcinoma of the prostate depends on well proven urological methods. Computer tomography provides valuable additional information, such as tumour spread beyond the prostate, to lymph nodes and to the skeleton. It is an important requirement for proper radiotherapy and can be used to control treatment.