BrainLab VectorVision neuronavigation system: Technology and clinical experiences in 131 cases

OBJECTIVE: The BrainLab VectorVision neuronavigation system was used in 131 cases of different brain pathological conditions. The neuronavigation syst em was used without problems in 125 cases. These cases included 114 microsu rgical operations, 4 endoscopic procedures, 4 frameless stereotactic biopsi es, and 3 catheter placements. METHODS: The BrainLab VectorVision neuronavigation system is an intraoperat ive, image-guided, frameless, localization system. The system consists of a computer workstation for registration of images and physical spaces, an in traoperative localization device, and a computer image display. The system provides real-time responses regarding the locations of surgical instrument s. VectorVision is based on passive reflections of infrared flashes. Univer sal adapters with reflective markers for surgical instruments, endoscopes, and the operating microscope are used. RESULTS: In six cases, the system could not be used because of system failu re or mishandling. In 125 neurosurgical cases, the neuronavigation system w as useful, with a target-localizing accuracy of 4 +/- 1.4 mm (mean +/- stan dard deviation). For small cerebral lesions, we never performed an explorat ion with negative results. CONCLUSION: The BrainLab neuronavigation system has been shown to be very h elpful and user-friendly for routine neurosurgical interventions. Its advan tage lies in its mobility, based on wireless reflective adapters for surgic al instruments, endoscopes, and the operating microscope.