Limited PET/CT Scan

PET/CT scan Positron Emission Tomography (PET) scan is an imaging test that allows your doctor to check for diseases in your body. LIMITED pertains to examining a specific part only rather than doing the whole body. The PET scan can measure blood flow, oxygen use, glucose metabolism (how your body uses sugar), and much more.

Is there radiation involved?

Yes. CT Scan is an imaging test which involves a small amount of radiation to show pictures of the organs, tissues, and bones of the body.

Limited PET/CT Scan

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When to test

Your doctor may order a PET scan to inspect the blood flow, oxygen intake, and metabolism of your organs and tissues. Unlike other imaging tests, such as CT or MRI, PET scans show problems at the cellular level. This gives your doctor the best view of complex systemic diseases. PET scans are most commonly used to:

    • Detect cancer
    • Determine whether cancer has spread in the body
    • Assess the effectiveness of a treatment plan, such as cancer therapy
    • Determine if cancer has returned after treatment
    • Help diagnose dementia if other tests and exams do not provide enough information
    • Tell the difference between Parkinson disease and other movement disorders
    • Check coronary artery disease
    • Check brain tumors
    • Check memory disorders
    • Check cause of seizures


The scan uses a special dye that has radioactive tracers. These tracers are injected into a vein in your arm. Your organs and tissues then absorb the tracer. When highlighted under a PET scanner, the tracers help your doctor to see how well your organs and tissues are working. A PET scan is typically an outpatient procedure. This means you can go about your day after the test is finished.

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* This is for educational purposes only. LabFinder does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider in person for any health concerns.