title: [Variations of cerebral arterial and venous structure in circulation-impaired encephalopathy].
abstract: The paper presents a retrospective analysis of a state of cerebral and venous blood circulation in 108 patients with dyscirculatory encephalopathy (DE). Two-sided serial angiography was performed in such patients either for more precise definition of the indications for the operation of extracranial shunting or because of difficulties in differential diagnosis between neoplaster and a vascular cerebral process. Peculiarities of arterial circulation were asymmetry of hemispheral blood-flow and hydrocephalic vascular run. They were more pronounced in the patients with either abnormal cranial structure (dolicho- and macroencephalia) or with significant atherosclerotic alterations of extra- or intracranial arteries. Superficial convexital veins were worse visualised on the side of the reduced hemispheral arterial blood-flow, meanwhile deep venous system was filled in better. Even at early stages of DE there was observed forming of the developed anastomoses between superficial and profound venous systems, which were less manifest at late stages of the disease.
mesh_terms: D000328:Adult; D001161:Arteriosclerosis / Q000150:complications / Q000175:diagnosis*; D001921:Brain / Q000098:blood supply* / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography / Q000379:methods; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged