A Versatile Optical Neuronavigator System for Intraoperative MRI

1Oulu Clinic for Neurosurgery and Neurosurgical Research Unit, Kajaanintie 50, Oulu, FINLAND;2Department of Diagnostic Radiology, OuluUniversity Hospital, Oulu, FINLAND; 3Department of Anesthesiology, Oulu University Hospital, Oulu, FINLAND;4Marconi Medical SystemsFinland, Ayritie 4, Vantaa, Finland;