AbstractModern imaging techniques have greatly aided our ability to diagnose the effects of craniocerebral trauma. Computed tomography (CT), introduced in 1973, revolutionized the evaluation of changes related to trauma, allowing accurate diagnosis of intracerebral and extracerebral areas of blood accumulation. It became readily apparent that in most cases CT was the only exam necessary prior to surgical treatment. CT also accurately evaluates facial bone trauma. Magnetic resonance (MR), widely introduced in 1983, has also aided in diagnosis and is most accurate in cases of subacute and chronic injury, particularly cases involving shearing injuries. Skull films continue to be useful for linear skull fractures.