Physicians of the UC Brain Tumor Center utilize sophisticated, modern technology to navigate the brain. Image-guided surgery is like a GPS for the brain that helps surgeons to locate tumors for surgery. It uses functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) to localize the functional, or “eloquent,” areas of the brain that are associated with language, vision and mobility. Using these technologies, surgeries can be tailored to be less invasive. Functional areas of the brain can be mapped out prior to surgery to help maximize removal of the tumor and minimize neurological complications after surgery.