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Positron Emission Tomography of the Chest

Medically reviewed by Last updated on Jun 5, 2024.

What do I need to know about a positron emission tomography (PET) scan of the chest?

A PET scan is used to take pictures of your chest. A small amount of radiation, called tracer, is put into your body before the PET scan. The tracer shows how chemicals, such as glucose (sugar), are working in your tissues. A PET scan of your chest will show the blood flow through your heart. A PET scan may show an abnormal growth, such as a tumor. It may be used to show if cancer has spread. A PET scan may show disease or damage to your chest, lungs, heart, or esophagus.

How do I prepare for a PET scan?

What will happen during the PET scan?

What should I expect after a PET scan?

What are the risks of a PET scan of the chest?

The radiation from the scan may increase your risk of cancer. Small growths in your body may not be found with a PET scan. If the results are not clear, you may need another PET scan. If you are pregnant or breastfeeding, a PET scan may harm your baby.

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Further information

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