ABSTRACTNeonatal echoencephalography is performed routinely in all very low birth‐weight neonates in many nurseries throughout the world. The diagnosis of a haemorrhage requires the differentiation of normal echogenic periventricular structures from haemorrhage. A classification of haemorrhage based on size alone is advocated. A separate classification is then used to assess post‐haemorrhagic ventricular dilatation by measurement of “ventricular width”. As the long term neurodevelopmental outcome of the neonate is likely to be more related to the state of the brain parenchyma than the ventricles, the limitations of ultrasound in assessing the parenchyma has resulted in other techniques being investigated to determine if they can better predict subsequent handicap.
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