Neonatal intracranial pathology demonstrated by high-frequency linear array ultrasound.

We have performed a total of 126 ultrasound scans of the brain in 86 different neonatal patients with a 7.0 MHz linear array transducer (6.5 cm in length), using the anterior fontanelle as a scanning window. Thirty-one patients had demonstrable abnormalities confirmed by CT while 49 patients were normal. Using this technique we were able to reliably define normal lateral ventricles, subependymal hemorrhages, hematomas, intraventricular hemorrhages, hydrocephalus, and porencephalic cysts.