Impact of intracranial blood-flow redistribution on stroke size during ischemia-reperfusion in 7-day-old rats

► Blood-flow velocities (BFVs) were measured in P7 rat cerebral arteries. ► Ultrasound imaging evidences blood-flow redistribution during ischemia. ► Increased mean BFVs indicated collateral recruitment and absence of a lesion. ► A correlation between mBFVs in the basilar trunk and lesion size was determined.