Figure 4.
Axial rCBF images of four newborn infants (1–4) using PET/MRI. Axial T1w MP-RAGE MRI is shown at the top at the level of the basal ganglia. The myelination of the white matter is seen in the posterior internal capsule as increased signal intensity (arrow). The white matter frontally and occipitally has a low signal intensity (arrowheads) indicating low degree of myelination as expected in imaging of infants at term.45 Infant no 3 only had 70 s PET acquisition. The PET rCBF images are shown after 5 mm Gaussian filtering and quantified in ml/100 g/min. Particularly, high rCBF is found in the striatum and thalami and low rCBF is seen in lateral frontal and occipital white matter and cortices.