Positron Emission Tomography (PET) is a state-of-the-art imaging tool that allow physicians to pinpoint the location of cancer within the body before making treatment recommendations. The highly sensitive PET scan images the biology of disorders at the molecular level.
A PET scan is very different from an ultrasound, X-ray, MRI or CT scan. A PET scan allows the physician to distinguish between living and dead tissue or between benign and malignant disorders. Since a PET scan images the biology of disorders at the molecular level, it can help the physician detect abnormalities in cellular activity at a very early stage, generally before anatomic changes are visible.
Depending on the type of scan, you may be asked not to eat after midnight before the day of your test. While the scan itself will take approximately one hour, you should plan to spend two to three hours from the beginning to the end of the procedure.