Arterial spin labeling-derived cerebral blood flow as a translational biomarker and candidate surrogate endpoint for cognitive impairment.
PURPOSE OF REVIEW Arterial spin labeling (ASL) MRI noninvasively quantifies cerebral blood flow (CBF), but its role as a mechanistic biomarker and surrogate endpoint in trials of cognitive impairment remains undefined. This review evaluates evidence linking regional CBF to cognition across Alzheimer's disease, mild cog...