COMPUTER-ASSISTED NAVIGATED RESECTION OF BRAIN-TUMORS

Computer-assisted intraoperative image information from CT/MR image da ta, in short computer-assisted surgery (GAS), is increasingly used in various fields of surgery to optimally analyse the intraoperative site . In neurosurgery, the employment of the new frameless navigation syst em has today with some indications already replaced frame-guided stere otactic methods of localization. With the MKM system (Zeiss, Germany), the operating microscope itself has been converted into a navigation device through robot-control and optical data superimposition. This pa per reports the results we obtained in using this system for the local ization of intracranial tumours in 29 patients. It is our experience t hat this neuronavigation system improves approach planning and facilit ates decisions as to resection borders with low and high grade gliomas as well as metastases.