Fig. 1

MR images in an 8-day-old term infant. Upper row: Axial T2 (TR 6282 ms, TE 120 ms, slice thickness 2 mm, no gap) shows no high signal intensity at globus pallidus level (a). Axial 3D T1(TR 9,38 ms, TE 4,6 ms, slice thickness 2 mm) shows a high signal in the basal ganglia (b). SWI (spoiled T1 enhanced with TR 31 ms, TE first 7,2 ms, slice thickness 2 mm) shows a high signal at the subthalamus (c) and globus pallidus level (d). The Phase image at the level of globus pallidus level shows no abnormal signal compatible with calcifications or blood products (e) Axial DWI, b 1000 and ADC map (TR 4998 ms, TE 102 ms, slice thickness 3 mm) shows no abnormal increased signal in basal ganglia (f, g). Middle row: At three months of age, the followup MR shows normalization of the signal on T1 and SWI (i and j) and a high T2 signal at the globus pallidal level (h). Lower row: Term neonate as control scanned in the first week of life. A normal signal at the basal ganglia on Axial 3D T1(TR 9,38 ms, TE 4,6 ms, slice thickness 2 mm) (k) and SWI (spoiled T1 enhanced with TR 31 ms, TE first 7,2 ms, slice thickness 2 mm) (l)