The CT device breaks down the body part to be examined into image slices a few millimetres in size, and then maps these slices by emitting x-rays. These x-rays pass through the body and are absorbed differently in each tissue and organ. The rays passing through the tissues are captured by the X-ray detector, and the signals thus obtained are converted into an image by the computer. With the help of the examination, cancerous and pathological lesions, bleeding, internal injuries, and inflammations can also be seen.
As the CT scan involves radiation, a specialist consultation is always required before the scan, where the clinician will consider whether the scan is necessary based on the symptoms. Due to radiation exposure, a CT scan should only be performed on the basis of a medical recommendation.