Sagittal and coronal US of a grade 2 hemorrhage
Both lateral ventricles are filled with blood, but there is no ventricular dilatation.

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Grade 1 peri ventricular hemorrhage

Sagittal and coronal US of subependymal hemorrhage located in the groove between the thalamus and the nucleus caudatus.

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Anatomic classification :
PVH-IVH can be classified into 4 grades of severity. This classification, which is useful for prognostic reasons when counseling parents and caregivers, is described below. Note that this classification is based on radiological appearance rather than a pathophysiological description of events leading to PVH-IVH.
Grade I - Subependymal region and/or germinal matrix
Grade II - Subependymal hemorrhage with extension into lateral ventricles without ventricular enlargement
Grade III - Subependymal hemorrhage with extension into lateral ventricles with ventricular enlargement
Grade IV - Intraparenchymal hemorrhage


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Hydrocephalus.


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Periventricular hemorrhagic infarction (PVHI) on MRI.

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Periventricular hemorrhagic infarction (PVHI) with porencephalic cyst formation.

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Intraventricular hemorrhage (IVH) with periventricular hemorrhagic infarction (PVHI).

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Severe or grade III hemorrhage (subependymal with significant ventricular enlargement).

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Moderate or grade II hemorrhage (subependymal with no or little ventricular enlargement).

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Grade I hemorrhage minimal or grade I periventricular hemorrhage (PVH).

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Normal neonatal brain shown with midline sagittal scan.

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Normal neonatal brain shown with left sagittal scan.

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Sonographic appearance of a normal neonatal brain. Image is from a coronal midline scan.


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