Revaluation of Closed Head Injury: Comparative Study of MR and CT

The purpose of this study is to define the respective roles of MR and CT in detecting acute and chronic head injury and to revaluate the radiopathological features of closed head trauma. CT has contributed to the management of patients with head trauma, but has not been able to provide adequate information about some types of head injury. This is particulary the case in patients with parenchymal cerebral contusions or extraparenchymal intracranial abnormalities. In this report, we systematically evaluated and compared the CT and MR findings of acute and chronic head trauma to determine the relative sensitivities of both methods for detecting a more complete spectrum of traumatic lesions.