How does the CHALICE rule affect CT scanning in children with head injuries?

Publication of the CHALICE (children's head injury algorithm for the prediction of important clinical events) rule for paediatric head injuries1 and its adoption by the National Institute for Health and Clinical Excellence (NICE)2 may have significant implications for patient management. The effects of these have been explored in a recently published Australian audit aimed at externally validating this rule.3 This study showed that implementation of CHALICE would result in a significant increase in the use of CT scanning in suspected head injury cases and …