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Positron Emission Tomography (PET)

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Positron emission tomography (PET) is a test that uses a special type of camera and a Reference tracer Opens New Window (radioactive chemical) to look at organs in the body.

The Reference radiologist Opens New Window may discuss preliminary results of the PET scan with you right after the test. Complete results are usually available in 1 to 2 days.

**Positron emission tomography (PET)**
Normal:		Blood flow is normal and organs are working well. The flow and pattern of the tracer shows normal distribution in the body.
Abnormal:	Heart:	Decreased blood flow and increased glucose Reference metabolism Opens New Window may show that the blood vessels are blocked. This may mean Reference coronary artery disease Opens New Window (CAD) is present. Decreased blood flow and glucose metabolism may mean that heart tissue is scarred and damaged, such as from a Reference heart attack Opens New Window.
	Brain:	Areas of increased glucose metabolism or lower oxygen use and blood flow may mean you have Reference epilepsy Opens New Window. Decreased oxygen use and blood flow may mean a Reference stroke Opens New Window has occurred. Decreased glucose metabolism may mean a form of Reference dementia Opens New Window. Dementia may be caused by Reference Alzheimer's disease Opens New Window, Reference Parkinson's disease Opens New Window, Reference Huntington's disease Opens New Window, or mental illness, such as Reference schizophrenia Opens New Window. Patterns of blood flow and oxygen use that are not normal may mean a brain tumor is present. See a picture of Reference PET scans of the brain Opens New Window Reference Opens New Window.
	Tumor detection:	Areas of increased glucose metabolism may mean a tumor is present.

By:	Reference Healthwise Staff	Last Revised: Reference July 28, 2011
Medical Review:	Reference Adam Husney, MD - Family Medicine Reference Howard Schaff, MD - Diagnostic Radiology

This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Reference Terms of Use. Reference How this information was developed to help you make better health decisions.

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Positron Emission Tomography (PET)

Results

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