The Cut Flow Index: An Intraoperative Predictor of the Success of Extracranial-Intracranial Bypass for Occlusive Cerebrovascular Disease

Abstract

A poor CFI can alert surgeons to potential difficulties with the donor vessel, anastomosis, or recipient vessel during surgery. Furthermore, a CFI closely approximating 1.0 provides physiological confirmation of impaired cerebrovascular reserve in the recipient bed.