Table 3.

Heidelberg bleeding classification, adapted from von Kummer et al. (26).

Class	Type	Description
1	Hemorrhagic transformation of infarcted brain tissue
1a	HI1	Scattered small petechiae, no mass effect
1b	HI2	Confluent petechiae, no mass effect
1c	PH1	Hematoma within infarcted tissue, occupying <30%, no substantive mass effect
2	Intracerebral hemorrhage within and beyond infarcted brain tissue
	PH2	Hematoma occupying 30% or more of the infarcted brain tissue, with obvious mass effect
3	Intracerebral hemorrhage outside the infarcted brain tissue or intracranial-extracerebral hemorrhage
3a	Parenchymal hematoma remote from infarcted brain tissue
3b	Intraventricular hemorrhage
3c	Subarachnoid hemorrhage
3d	Subdural hemorrhage