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72 patients at the age of 44 to 76 years with transitory ischaemic attacks which happened and for a short time reversible deficits, respectively, were diagnosed both conventionally duplex-sonographically and with the colour-coded duplex sonography under the question of vascular stenotic process in the region of the cervical vessels. After the ultrasound examination within two weeks an angiography was performed. As a result was shown that in 10 patients with an angiogram without pathological findings by means of the colour-coded duplex sonography in 3 cases plaque formations could be proved which could be clearly diagnosed only by colour marking.

72 Patients with occurred transitory ischemie attacks and passed reversible neurologie deficits were duplexsonographically diagnosed. After wards a renewed duplexsonographic investigation with color coding followed in all patients. The patients were angiographically diagnosed within two weeks. As a result in three of ten patients with an unobtrusive angiogramm plaques formations were proved by means of the color codes duplexsonography.

In the present paper the courses of the disease of 117 patients who due to an acute cerebrovascular insufficiency were admitted to the angiological department of a Dresden county hospital in the period from January 1989 to June 1990. Early complications which were frequently observed were urinary tract infections, pneumonias and recidivations of insult. On the basis of the results of examination can be confirmed that the prognosis is decisively determined by the ability of mobilisation during the first days.

In the cerebrovascular disease the EEG can give references at localisation, extension and course. The ability of statement is increased by methods of provocation and activation. On 35 patients with cerebrovascular insufficiency can be indicated that there are good correlations between changes on the large cerebral supply vessels and changes of the EEG, in particular in the carotid pressure trial.

On account of cerebrovascular insufficiencies or asymptomatic vascular noises which had taken place 45 patients were examined by means of Doppler sonography and after this by means of angiography. The judgement of the common carotid artery, the internal and external carotid arteries, the vertebral artery, the subclavian artery and the supratrochlear artery were involved into the ultrasound investigation. The sensitivity of the supratrochlear compression test was 50% in the diagnosis of high-degree stenoses and occlusions of the internal carotid artery, whereas the sensitivity of the complete ultrasound investigation way about 80%. The advantages and disadvantages of the ultrasound Doppler sonography investigation are discussed.