CT scans can provide detailed information to diagnose, plan treatment for, and evaluate many conditions in adults and children. When used appropriately, the benefits of a CT scan far exceed the risks. For each rotation of the X-ray source and detector assembly, the image data are sent to a computer to reconstruct all of the individual 'snapshots' into one or multiple cross-sectional images (slices) of the internal organs and tissues.Д¬T images of internal organs, bones, soft tissue, and blood vessels provide greater clarity and more details than conventional X-ray images, such as a chest X-Ray (see Figures 3 and 4).Many different 'snapshots' (at many angles through the patient) are collected during one complete rotation. Detectors in rows opposite the X-ray source register the X-rays that pass through the patient's body as a snapshot in the process of creating an image.

During rotation the X-ray source produces a narrow, fan-shaped beam of X-rays that passes through a section of the patient's body. A single rotation typically takesВ a second or less. While the patient is inside the opening, an X-ray source and a detector assembly within theВ system rotate around the patient.A motorized table moves the patient through a circular opening in the CT imaging system.Most CT scans are performed as outpatient procedures. These cross-sectional images are used for a variety of diagnostic and therapeutic purposes.Д¬T scans can be performed on every region of the body for a variety of reasons (e.g., diagnostic, treatment planning, interventional, or screening). Each cross-sectional image represents a вЂњsliceвЂќ of the person being imaged, like the slices in a loaf of bread. Figure 1: Drawing of CT fan beam (left) and patient in a CT imaging systemД¬omputed tomography (CT), sometimes called 'computerized tomography' or 'computed axial tomography' (CAT), is a noninvasive medical examination or procedure that uses specialized X-ray equipment to produce cross-sectional images of the body.

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