The importance of neuroimaging in abusive head trauma

Abstract

A shaking event is a common mechanism in abusive head trauma (AHT). • AHT is associated with greater morbidity and mortality than accidental (usually impact) head trauma. • AHT gives rise to different patterns of subdural haemorrhage (SDH) and parenchymal brain injury from impact head trauma. • Multifocal SDH is best regarded as a marker of a mechanism of injury but does not itself cause symptoms and signs. • Associated parenchymal brain injury leads to symptoms and signs and relates to outcome. • Published standards for the radiological investigation of AHT are available and should be followed.