Anatomical bases of brain revascularization: choosing an extra-intracranial bypass option

Surgical brain revascularization is an important treatment for acute or chronic ischemia, intracranial aneurysms and skull base tu-mors. Individual anatomy of brain vessels should be clearly understood for this procedure. Variants of collateral cerebral blood flow in patients with cerebrovascular diseases depend on individual characteristics of circle of Willis and reserve mechanisms of collateral circulation. These anatomical variations require careful preoperative planning to choose the optimal revascularization option. © 2021, Media Sphera Publishing Group. All rights reserved.