Early microvascular cerebral blood flow response to head-of-bed elevation is related to outcome in acute ischemic stroke

Background and aims Previously, microvascular cerebral blood flow(CBF) response to a mild head-of-bed ( HOB) elevation has been shown to be altered in acute ischemic stroke (AIS) by diffuse correlation spectroscopy (DCS). We have hypothesized that early CBF response is related to the functional outcome.