The scanner (CT or computerized axial tomography) uses X-rays in a rotational movement around the patient to obtain very precise slice images. This information is processed by a computer, and images with numerous different angles, such as axial, coronal, sagittal or 3D are obtained.

CT is indicated for the following investigations: brain, spine, facial bones, sinus, neck, thorax, abdomen, pelvis, osteoarticular, virtual colonoscopy, dental implants, blood vessels (angio-CT).

A contrast medium (oral or intravenous) may be used to increase the sensitivity of the exam depending on the findings sought and the clinical information.