Before your scan, your doctor will let you know if you need to avoid eating, drinking or taking certain medications. Wear warm, comfortable clothes without zippers or metal. You may be asked to change into a gown.
When you arrive, a trained radiology professional will connect an IV and inject the tracer. You’ll rest for 30 to 60 minutes while your body absorbs it.
The PET scanner is shaped like a large ring or doughnut. You will lie on a padded table that slowly moves into the machine for the scan. You need to stay very still during this time.
The scan may take 30 to 60 minutes.
If you feel nervous about tight spaces, let your doctor know ahead of time. They may give you medicine to help you feel more relaxed.
The tracer won’t make you feel different, and your body will naturally get rid of it after the scan. Drinking plenty of fluids afterward can help flush it out faster.
A radiologist will review your scan images and write a report for your doctor to discuss with you.