A CT scan produces a cross-sectional image of the human anatomy, which helps the clinician to rule out or confirm the presence of certain disease, and in some cases to evaluate the extent of injuries to a trauma patient, such as someone involved in an automobile accident. During the non-invasive test, the patient is placed on a table and moved incrementally through the squared off donut-shaped scanner while an X-ray beam is projected through cross sections of their anatomy. The X-ray energy passes through the patient and is recorded on electronic detectors in the scanner. This information is then sent to a specialized computer that reconstructs the information into individual slices and combines them sequentially into a comprehensive volume image of the entire area scanned. The thinner the slices, the more revealing the detail is in the resulting images, and the more definitive the exam results.