Abstract
The MR imaging shows the intracranial lesions more exactly and gives us more effective figures of the brain than the CT scan, because of not only its ability to demonstrate fine imagings of structures but also the possibility to make the scanning with free slices.
Eleven cases with post-traumatic uncontrolable epilepsy, who had head injury in their infancy or childhood, were studied about the MR imagings and compared with their CT findings. The affected lesions mainly consisted of the cortical atrophy which was demonstrated by CT scan, but the MR imagings showed that the extent of atrophy was much larger than the extent demonstrated by the CT scan. Furthermore, the asymmetry of bilateral temporal lobes was demonstrated by the MR imagings of coronal slice through the temporal lobe in seven cases. The temporal lobe in the affected side was smaller than the non-affected side. The high intensity of medial side of the temporal lobe was also demonstrated in the T 2 weighted MR imaging.