[Diagnosis of infratentorial aneurysms (author's transl)].

Within a period of two years ten infratentorial aneurysms have been diagnosed. Seven have been operated on. Only rarely the diagnosis of an aneurysm of the posterior fossa can be postulated on clinical grounds or by means of computerized tomography alone.

[Diagnosis of cerebral atrophy on the basis of the cerebral angiogram (author's transl)].

An increased distance between the brain surface and the skull causes the appearance of a broad avascular band in the carotid angiogram, which -- apart from other criteria -- has been valued as a sign of cerebral atrophy. 54 patients (60 to 79 years old), suffering from cerebrovascular diseases, were examined. Carotid angiography of the afflicted hemispheres were carried out within 4 to 90 days after the stroke.

[Indications for neuroradiological investigations using contrast media in patients with psychiatric disorders (author's transl)].

The results are presented of neuroradiological investigations using contrast media in 100 patients hospitalized in a psychiatric department. The existence of neurological disturbances or the psychoorganic syndrome, as well as the results of screening methods such as EEG and brain scan are important factors in the decision for or against the performance of cerebral angiography or pneumoencephalography. The significance of the "brain atrophy syndrome" accompanying psychotic diseases is discussed.

[Cerebral angiography with the contrast medium vasobrix 32 (ioxitalamate) (author's transl)].

On the basis of angiograms carried out 168 patients, the contrast qualities achieved with the contrast medium, Vasobrix 32 were compared with those of other contrast media used so far. In the case of carotid angiography, Vasobrix 32 allowed better visualisation in the arterial phase than achieved with the contrast media used so far. The superiority of Vasobrix 32 over other substances was even more evident in the venous phase.

[Conventional contrast media examinations and computer tomography in space-occupying processes (author's transl)].

In 1977, more than 2,000 patients were examined in our department of neuroradiology by means of angiography, computed tomography, and in some cases also by pneumoencephalography. The value of the various neuroradiological examinations is discussed taking as an example two patients suffering from intracranial space-occupying processes of different etiologies. Consequently, the differential diagnostic problems occurring are discussed casuistically.