Head ultrasonography (HUS) is a reliable and easy to perform bedside imaging technique that can give valuable information about degree of brain injury/edema after perinatal asphyxia in term neonates.

In adults and in children older than 2–3 months, the renal cortex is normally less echogenic than the liver parenchyma. Some researchers have suggested that hyperechogenicity of the renal cortex (i.e.