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What is a PET-CT scan?

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An integrated PET-CT scan is a diagnostic test used to detect cancer and help determine its stage. It combines the images from a positron emission tomography, or PET, scan and a computed tomography, or CT, scan at the same time on one machine, states the American Society of Clinical Oncology.

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What is a PET-CT scan?
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The combined PET-CT image shows the metabolic activity of the organ or organs studied and the structure of the organs themselves, notes the Radiological Society of North America. In addition to its use in cancer detection and staging, PET-CT scans are also used to detect heart disease such as coronary artery disease or damage following a heart attack; brain disorders, like tumors and seizures; and other central nervous system disorders, according to Cleveland Clinic.

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