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Abstract
S
onography is a neuro-imaging technique that is well established in its use in the neonatal incubator units. It is the accepted initial investigation for the diagnosis of germinal matrix, intraventricular hemorr-hage, or both in the premature infant. Hydrocephalus complicating intraventricular hemorrhage or shunt blockage can be readily diagnosed and monitored.
For a number of other clinical indications, for example, seizures or perinatal asphyxia in full-term infants; MR imaging and CT are established as the imaging modalities of choice. However, CT and MR imaging equipment may not be universally available, and neonates may be too unstable to leave the intensive care unit. Sonography is frequently an essential investigation in such situations until more sophisticated imaging can be arranged and performed.