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Placental perfusion imaging using arterial spin labeling (ASL)
Velocity-selective ASL of the placenta in a pregnant woman complicated by fetal heart disease (hypoplastic left heart syndrome) at gestational age of 29 weeks. ASL shows adequate perfusion signals in the placenta.
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Quantitative susceptibility mapping (QSM) in the placenta
Susceptibility (in ppm) and T2* (in ms) maps acquired in a healthy pregnant woman demonstrate lobular contrast reflecting regional oxygenation differences.
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Cerebral blood flow (CBF) measured in very preterm infants using ASL
CBF measured in preterm infants with and without brain injury (arrows: dilated ventricles; arrowheads: intraventricular hemorrhage).
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Longitudinal trajectories of regional CBF in very preterm infants
All regional and global CBF in preterm infants increased significantly with advancing postmenstrual age.
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QSM in the newborn brain
Susceptibility maps (unit: ppb) acquired in the healthy newborn brain at postmenstrual age of 46 2/7 weeks. Marginal contrast (negative susceptibility) in several white matter fiber bundles indicates early myelination.