Positron Emission Tomography/computed tomography, or PET/CT, utilizes an injection of a small amount of a special kind of radioactive material, called a positron emitter, to make 3D images of the body. PET/CT is particularly useful in detecting and staging many types of cancers, as well as assessing heart problems. A low-dose CT (or “CAT Scan”) is performed in conjunction with a PET scan to make an image that provides both the structure and function of the body.

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