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Beth A. Schrope, MD, Endocrinology, Diabetes & Metabolism, answered on behalf of Columbia University Department of SurgeryComputerized Tomography (CT) is one of the most common imaging studies performed when someone is suspected of having pancreatic cancer. In a CT scan, an X-ray machine linked to a computer takes a series of detailed cross-sectional pictures. These "slices" are then linked together to create a detailed 3-dimensional reconstruction of the body. Unlike regular X-ray images which can only show bone, CT images show soft tissue, blood vessels, and bone.