What is a PET-CT scan?
PET-CT combines Positive Emission Tomography (PET) and Computed Tomography (CT). CT produces an anatomical scan of the body and PET produces information about functional cellular activity in the body. These two sets of data and superimposed to aid an early and accurate diagnosis.
Who can refer you for a PET-CT scan?
PET CT is a specialised imaging technique and referral has to be made by a specialist consultant.
Preparing for a PET-CT scan
You will always be given specific preparation instructions for your scan. Usually you will not be able to eat anything for six hours before the appointment but you can drink as much still water as you like. It is advisable to wear loose comfortable clothing without metal fastenings for your scan appointment.
What happens during a PET-CT scan?
When you arrive you will change into a hospital gown and remove all jewellery. You will be given an injection of radioactive glucose (sugar) and then asked to lie and relax quietly for about one hour. The relaxation period is important for your body to absorb the sugar and once completed you will move to the scanning room.