The latest in diagnostic imaging technology, PET (positron emission tomography) scans are a type of nuclear medicine imaging. This test produces images that show activity in body tissues. A substance that gives off a tiny amount of radiation is put into your body. This substance goes to the part of you body that is most active. A machine can then detect where that substance is.
PET scans are especially useful in diagnosing cancer. If cancer is suspected, PET scans can help confirm or rule out that diagnosis, allowing some patients to avoid biopsies or other invasive procedures.
For patients who have had surgery or radiation therapy for cancer, PET scans can often tell doctors to what extent the treatment has been successful.
PET imaging is used to look for cancer in the lungs and other organs, and it can help diagnose heart and Alzheimer’s disease.
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