INTRAOPERATIVE CT SCAN FINDINGS DURING RESECTION OF GLIAL TUMORS

Intraoperative computerized tomographic (CT) scan findings in two case s during resection of glial tumour are described. These intraoperative CT images were obtained by an exclusively developed operating CT scan ner system for use in the operating room. Repeated intraoperative CT s cans taken during tumour removal showed shift of the brain including c entral structures and displacement of the cortical subarachnoid space in both cases. With contrast medium, the edge of the surrounding brain after resection was enhanced and a round enhanced area was observed i n distant white matter. The distant enhancement, which we call 'remote enhancement: probably suggests damage to the blood-brain barrier due to surgical manoeuvre.