The LightSpeed can capture multiple images about six times faster than traditional scanners. By scanning at different angles, it can provide a 3-dimensional image of the brain. Contrast material is also often used. These images provide the surgical team with a navigation route that adjusts for brain shift during the procedure. Furthermore, it provides the surgeon with the opportunity to safely expand the operative area if necessary for maximum lesion removal.
Laboratory tests can provide useful information in the diagnosis of brain tumors.
A lumbar puncture, or spinal tap, draws out cerebral spinal fluid. The fluid is examined for tumor cells, markers, infection, or blood. Ultimately, a biopsy can provide a specific diagnosis. When stereotactic equipment is used for biopsy, a computer guides the needle to the precise tumor site. A small sample of the tumor is taken and sent to a pathologist for examination.