Neonates with seizures: what to consider, how to image.

The immature brain is more prone to seize than the mature brain. Causes of seizure are multiple and affect different neuroimaging modalities. The most common associated diseases are hypoxia-ischemia, intracranial hemorrhage and cerebral infarction, central nervous system infections, and acute metabolic disturbances. Ultrasound (US) is not specific. Computed tomography (CT) carries the risk of irradiation and is not as productive as magnetic resonance (MR) imaging. MR imaging is the modality of choice; it is difficult to perform in a neonate, but it is more sensitive and versatile than US or CT, and is now widely used in specialized centers.