Use of 3D visualisation of medical images for planning and intraoperative localisation of superficial brain tumours: our experience.

Background: In the present article, we assessed the role, adequacy and application accuracy of intraoperative visual guidance based on the computer 3D visualisation of preoperative medical images in the surgery of superficial brain tumours.

Materials And Methods: For 30 consecutive patients with convexity meningioma or cortical/subcortical brain tumour, we used 3D visualisation of post-contrast fast spoiled gradient recalled (FSPGR) MR images to plan optimal positions for the trepanation opening and/or corticotomy site. At the beginning of the surgery, planned positions were transferred to the scalp and the cortical surface of the patient by visually matching the 3D surfaces with the operative field.