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Pulsed arterial spin labeling (PASL) perfusion MRI has unique advantages for measuring cerebral blood flow (CBF) in the pediatric population. In neonates with congenital heart defects (CHDs), however, a considerable number of negative CBF values were observed in PASL perfusion images. A set of specific physiological and biophysical conditions were proposed as plausible explanations for this phenomenon,...
Multislice Q2TIPS is a widely used pulsed arterial spin labeling (PASL) technique for efficient and accurate quantification of cerebral blood flow (CBF). Slices are typically acquired inferior to superior from a tagging plane. Superior slices show signal loss greater than the loss expected from blood T 1 decay. In order to assess the reasons for this additional signal loss, three single-slice...
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