We provide the following types of PET-CT scan:
- fluorodeoxyglucose (FDG) PET
- florbetaben (amyloid) PET
- gallium PSMA (prostate) PET
- gallium dotatate (neuroendocrine) PET
- fluoro-ethylcholine (FEC) PET
- sodium fluoride (NAF) PET
A PET-CT scan is carried out by a nuclear medicine technologist (a healthcare professional trained to handle isotopes).
You will be given an injection of a radiotracer (isotope). Then you will be asked to rest quietly in your own individual room. Family and friends will need to wait in outside in the waiting area.
During the scan, you will lie on a table that moves backwards or forwards slowly. The table will be positioned so that the part of your body that’s being scanned is in the centre of the scanner.
The whole procedure can take up to two and a half hours, with the actual scan time taking 30 and 40 minutes.
You must let us know if you are pregnant or breastfeeding, as this type of scan is not recommended.
You will need to fast for a number of hours before the scan. This means you won’t be able to eat any food, but you can drink water. This helps the tracer to be absorbed into the body. You’ll be given full details on how on long to fast for beforehand.
If you have diabetes you will be given a late morning appointment, so you can have a light breakfast with your medication, and fast for four hours before your appointment.
If you don’t have diabetes or diet-controlled diabetes, you will need to fast for six hours before your appointment.
You will need to change into a hospital gown and empty your bladder before your appointment. You may also need to remove any jewellery.
We will let you know at the time of the scan if there is anything special you need to do after the procedure.
Usually, you’ll be able to leave the hospital straight away, and have something to eat.
The isotope will pass naturally out of your body fairly quickly. Make sure you drink plenty of liquid and go to the toilet often, as this will help pass the isotope out of your body.
The amount of radiation in your body after the scan will be very small and there is little risk of contaminating other people.
A report will be sent the doctor who requested your scan, usually the next working day. You’ll be able to get the results of your scan at your next appointment.
If you are not eligible for a PET-CT scan, your consultant will explain alternative options. This may include:
