Criteria for acquisition of computed tomography in mild head injury

Abstract

We examined the criteria for acquiring computed tomography (CT) for mild head injury in Japan, where the number of CT scanner is higher than other countries. CT acquisition should be mandatory in adults with a Glasgow Coma Scale (GCS) score＜14, those older than 60 years, and those presenting with any symptoms. If none of these criteria are satisfies, CT is recommended in the presence of trauma findings in the head and in patients with dangerous injuries. CT examination should be performed in children with a GCS score＜14, those with altered mental status, and those with palpable skull fractures. Otherwise, the criteria for those older and younger than 2 years are different, and children are hospitalized for observation if it the score falls under the standard threshold. In children for whom the effects of radiation exposure is a concern, the protocol should be reconsidered to substitute CT with magnetic resonance imaging.