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A PET scan, or positron emission tomography scan, is a medical imaging technique that uses a radioactive tracer to detect cellular activity in the body. The tracer is injected into the patient's bloodstream and accumulates in areas of high metabolic activity, such as tumors. The PET scanner detects the gamma rays emitted by the tracer and produces detailed images that can help diagnose and monitor various conditions, including cancer, neurological disorders, and Heart disease.
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