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PET-CT scans

Combined CT and PET scan

An advanced nuclear imaging method that gives a detailed picture of your cells and the body's internal structures


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About having a PET/CT

PET-CT scans combine PET (positron emission tomography) and CT (computised tomography) technology in one full body scanner. This advanced nuclear imaging technique shows how the cells in the body are functioning at the same time as generating 2D and 3D images of inside the body. 
PET CT Scanning

How does a PET/CT scan work?

PET-CT scans can be used to diagnose, and monitor cancer to see if cancer has spread to other parts of the body. It is also used to assess the body's response to treatment. This scanner is increasingly used to diagnose inflammatory conditions and heart conditions. 

For the PET part of the scan, you'll be given an injection of a substance called a radioactive tracer. As this is absorbed by the body, any cancerous or inflammatory cells will show up on the scan as hot spots. The CT scan produces 2D X-ray images of your body as it moves through the scanner. These can be layered to create 3D images for your consultant to analyse.

Like all procedures, there may be some risks and side effects involved. These will be explained to you, and your consultant can answer any questions you have.

Associated scan PET CT

FDG Pet scan

Fluorodeoxyglucose (FDG) is a radiotracer used to detect active malignant lesions in a wide range of cancers. It can also be used to monitor the response to cancer therapy treatments.

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SPECT-CT scan

It's full name is a single-photon emission computed tomography scan. The scan uses a gamma ray technique to produce 3D images to help analyse the function of internal organs.

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Nuclear medicine scanning

About our nuclear medicine services

This service is a branch of specialist medical imaging that uses radioactive substances to diagnose and treat a variety of diseases.


The most common diagnostic tests that use nuclear medicine scans include; bone scans, lung scans and certain tests for the heart, thyroid and kidney functions.  

Our locations offering PET/CT Scanning

We provide exceptional care across our network of hospitals, outpatient centres and specialist clinics for diagnostic imaging and scanning.

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We're happy to help you make an appointment with one of our experienced consultants.

020 7079 4344
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This content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
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