Princess Margaret Cancer Centre (Directions)​​3rd Floor, Main Reception, Joint Department of Medical Imaging


Monday - Friday: 8:00am - 5:00pm​


  • Phone: 416 946 4501 ext. 3172
  • Fax: 416 946 2144 ​

What is a PET/CT scan?

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Cancer & COVID

PET stands for Positron Emission Tomography. It is a type of test that takes pictures of the inside of your body. It uses a small amount of a radioactive sugar to help find certain diseases early. It can also show how well your treatment is working.

CT stands for Computed Tomography. It uses x-rays to show pictures of your bones and other parts of your body.

The technologist adds the PET pictures and CT pictures together. This way, the radiologist can get a better picture of what is happening in your body. This will help them decide whether there is something wrong in your body.​​

What to Expect

Please note that the instructions are specific for FDG (fluorodeoxyglucose) PET/CT scans for oncology (cancer care).

Before Scheduling Your Appointment
What to Bring
How to Prepare
During and After the Scan
The Results of Your Scan
How Long Will Your Appointment Be?

Health Information

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          Last reviewed: 1/19/2020
          Last modified: 11/2/2023 11:27 AM
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