Table 1.

GMH-IVH Classification According to Volpe^1,6,11

Grade	Appearance in the parasagittal cUS section*
Grade I	Germinal matrix hemorrhage (GMH) This hemorrhage can extend into the ventricle; however, it occupies less than 10% of the ventricular space
Grade II	Hemorrhage occupying 10-50% of the ventricular space
Grade III	Hemorrhage occupying >50% of the ventricular space (usually accompanied by acute ventricular dilatation)
Periventricular hemorrhagic infarction	Parenchymal hemorrhage on the ipsilateral side

^*The amount of intraventricular hemorrhage is assessed on the parasagittal cUS views.

cUS, cranial ultrasonography.