We evaluated the usefulness of surface anatomy scanning (SAS) in intra
cranial tumours, comparing it with surgical findings. We examined 31 p
atients with brain tumours preoperatively. The tumours included 16 men
ingiomas, 8 gliomas, 4 metastases and 3 others. SAS clearly demonstrat
ed the tumours, allowing them to be distinguished from the structures
of the brain surface, including oedema, except in cases of metastasis.
SAS clearly demonstrated large cortical veins. SAS is useful for thre
e-dimensional delineation of the brain surface before surgery.