[Cognitive dysfunction in 32 diffuse axonal injury cases].

In acute stage of traumatic brain injury, it is not easy to diagnose diffuse axonal injury (DAI) by computer imaging. Even in chronic stage, DAIs occasionally show no remarkable abnormality by ordinal CT or MRI images. We retrospectively studied 32 DAI cases by the Functional Independence Measure (FIM), a battery of neuropsychological tests and CT or MRI films of acute and chronic phase. The result showed decrease of cognitive function in 32 DAI cases. The degree of enlargement of the ventricles in chronic stage did not correlate with cognitive dysfunction.