Cerebral transfontanelle ultrasonography has been making many progress for ten years, with the grey scale of new echographs. We report here our experience. The technique is now standardized: we use a high resolution realtime scanner with a 5 MHz transducer placed directly over the fontanella. The flexible cable permits the examination of preterm infants in incubator. After the description of normal echoanatomy, we give examples of the most frequent pathology observed: hydrocephalus, intracranial haemorrhage, periventricular leukomalacia, corpus callosum lipoma, brains dysraphism, Dandy Walker malformation.
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