PET/CT combines the functional information from a Positron Emission Tomography (PET) exam with the anatomical information from a Computed Tomography (CT) exam.
A PET Scan detects changes in cellular function by determining how your cells are utilizing nutrients like sugar and oxygen. Since these functional changes take place before physical changes occur, a PET Scan provides information that enables your physician to make an early diagnosis.
A CT Scan uses a combination of X-rays and computers to give the radiologist a non-invasive way to see inside your body. One advantage of CT is its ability to rapidly acquire two-dimensional pictures of your anatomy. Using a computer, these 2-D images can be presented in 3-D for an in-depth clinical evaluation.

The PET exam pinpoints metabolic activity in cells and the CT exam provides an anatomical reference. When these two scans are fused together, your physician can view metabolic changes in the proper anatomical context of your body.

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