If this is an emergency call 911.
PET/CT FDG Brain Scan: Positron emission tomography
This handout explains a positron emission tomography (PET)/CT FDG brain scan, which allows doctors to see your brain while it is working. This scan is often used to check for tumors and to find the reason for memory problems. Included are how to prepare for the scan, what to expect, and how to get your results.