ASL parameters were compared with PET-CBF and PET-CVR. Pseudo-continuous ASL obtained the robust arterial transit time (ATT) and ASL-CBF estimation. PET-CBF and PET-CVR were measured using 15O-water PET.
Twelve patients underwent 15O-water PET/MRI with the acetazolamide (ACZ) challenge test. We investigated the relationship between MRI-arterial spin labeling (ASL) parameters and PET-cerebral blood flow (CBF)/cerebrovascular reactivity (CVR) simultaneously obtained by PET/MRI in Moyamoya disease.
