METHOD FOR QUALITATIVE ASSESSMENT OF DEGREE OF VASCULAR OCCLUSION OF INTRACRANIAL PATHOLOGICAL ARTERIOVENOUS CEREBRAL BYPASS Russian patent published in 2014 - IPC A61B8/04 

FIELD: medicine.

SUBSTANCE: performed is pre- and postoperative duplex scanning of both internal carotid and vertebral arteries. The blood flow index is calculated in each artery. The derived indices are summed up to derive the intracranial blood flow index (FVIIC). The bypass blood flow index is calculated through a pathological bypass formation (FVIBP) by formula: FVIBP=FVIIC-fvin. Variations of the pre- and postoperative bypass blood flow index enable the qualitative assessment of a degree of a vascular occlusion of the pathological arteriovenous cerebral bypass.

EFFECT: method enables the qualitative and noninvasive assessment of a degree of the vascular occlusion of the intracranial pathological arteriovenous cerebral bypass, optimising the further surgical approach by evaluating a degree of the blood flow bypass re-distribution.

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