[Technic of ultrasonic dopplerography in the diagnosis of occlusive lesions of the arteries of the base of the brain (doppleroangiographic study)].

Use was made for the first time of the ultrasonic dopplerography method for diagnosing occlusions of the brain base arteries in patients with cerebrovascular diseases. For this purpose a functional-compression examination technique was developed that enabled one to evaluate indirectly the patency of the intracranial arteries. Dopplerographic criteria of occlusions of individual arteries were determined. A comparison of the diagnosis made with the use of the ultrasonic dopplerography with the data of subsequent cerebral angiography showed that the results coincided in 83.3% of occlusions in the basilar arteries; 90% of occlusions in the terminal parts of the vertebral arteries: 90% of occlusions in the anterior and posterior communicating arteries; 86% of occlusions of internal carotid arteries in the siphon region, and 80% of occlusion of the median cerebral arteries. The results obtained give one grounds to recommend the ultrasonic dopplerography for practical use as a simple and sufficiently reliable method for diagnosing occlusions of the brain basin arteries.