ICH in children with AIS. Intracranial hemorrhages are classified according to the ECASS grading system. Representative examples of the 3 grades encountered (HI1, HI2, and PH1) are shown for both children on ACT (top row) and those not on ACT (bottom row). No larger hematomas or ECASS PH2 were observed in the ACT-treated group. White arrows point at areas of ICH.