DIAGNOSTIC TECHNIQUE FOR VERTEBROSUBCLAVIAN STEAL SYNDROME

摘要

FIELD: medicine.;SUBSTANCE: total stenosis of cerebral main arteries is detected with using parameters of lobar stenosis of the major artery of the head - internal carotid, vertebral arteries, basilar artery, subclavian artery and brachiocephalic trunk. If observing incipient steal syndrome of subclavian artery (ScA/SS.1), subclavian artery stenosis in the first segment (X_ScA), % is set equal to stenosis of ipsilateral vertebral artery (VA_ipsi). A lobar stenosis of subclavian artery (ΔX_ScA/SS.1), % is calculated by formula. In transient steal syndrome (ScA/SS.2), stenosis of subclavian artery is set equal to occlusion of ipsilateral artery VA_ipsi. In permanent steal syndrome (ScA/SS.3), stenosis of ScA is set equal to occlusion of one vertebral artery (VA_ipsi) and stenosis of the other vertebral artery VA_ref.;EFFECT: group of inventions enables predicting cerebro-vascular insufficiency and choosing therapeutic approaches to these patients.;2 cl, 2 ex, 1 tbl, 4 dwg