PET CT is used to diagnose a wide range of conditions. Visit our Scan Glossary for details of conditions scans are used for.
It’s important that you tell us before the scan if you:
What is a PET Scan?
A Pet scan is a scan that can test for certain diseases. It involves an injection with a tracer that allows us to see how organs and tissues are working.
How long does it take?
The total length of time for an appointment is 2.5 hours due to the preparation involved before having the scan. The scan itself takes 20-25 minutes or 45 minutes for a full body scan.
Do I need to fast?
Yes you will need to fast from midnight the night before. It is important to contact staff and advise them if you are diabetic as different fasting guidelines may apply depending on the time of your scan.
What should I expect when there?
We will go through your medical history, check your weight and height and give you a gown to wear. We will give you an injection with a tracer and ask you to relax for up to an hour before taking you in for your scan. Once completed we will give you time to get dressed before offering you a cup of tea/coffee and a light snack.
What is FDG?
It is a radioactive isotope that targets specific cells that are in a fasting state.
Am I radioactive after the scan/ how long am I radioactive?
You will be radioactive for up to ten hours after the scan, we ask that you please keep your distance from pregnant women and small children during this time.
What does being radioactive mean?
You are emitting radiation to the people around you.
How long does it take to get results?
It is dependent on other investigations you may be having but it is reported on within 48 hours, however more complex studies can take longer.
Who gets the results?
The results get sent to your referring doctor.