Pediatric patients are admitted to the emergency room for diverse causes, beside trauma, patients can present with convulsions, suspicion of brain tumor or increased intracranial pressure. In most of the cases a brain CT is performed even before physical examination by a skilled neurologist. The amount of radiation that the children are exposed is equivalent to 100 plain chest X rays. The purpose of this tudy is to examinate in a retrospective study what were the indications for CT study and what was the incidence of relevant abnormal findings that required emergency intervention or referral.