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PET scan

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Introduction
Positron emission tomography (PET) scans are used to produce detailed three-dimensional images of the inside of the body.
Why a PET scan is used
PET scans are usually used in combination with other tests, such as X-rays or magnetic resonance imaging (MRI) scans, to investigate or diagnose health conditions.
How a PET scan works
During a positron emission tomography (PET) scan, a substance known as a radiotracer will be passed into your body.
How a PET scan is performed
Positron emission tomography (PET) scans are usually carried out on an outpatient basis. This means you will not need to stay in hospital overnight.
Risks of PET scans
During a positron emission tomography (PET) scan, your body's tissue will be exposed to radiation.