We reviewed 65 died patients admitted to emergency medical center of Dankuk University hospital after severe head trauma from January 1995 to December 1995. To predict the outcome after severe head injury, we analyzed patients accarding to the initial GCS score and the initial CT findings. The CT findings that we evaluated were the type af intracranial lesian(mass Vs diffuse lesion). Midline shift(>_ 3mm), and compression status of basal cistems. The irreversible brain damage was suspected fram the conditions of low GCS score(GCS<_ 3-5) and the CT findings of (1) diffuse lesions with obliteratian of basal cisterns and (2) mass lesions with midline shift more than 3mm and obliteration of basal cistems. The patients with irreversible brain damage were almost died within 24 hours after injury. But the CT findings of (1) pure mass lesion, (2) diffuse lesion with mild compression of basal cisterns, and (3) mass lesion with midline shift and mild compression were supposed to the reversible brain damage, and the patients with these findi@ngs had long survival time more than 48 h@aurs or 7 days.