A C.T. scan combines many x-ray images with the aid of a computer to generate cross-sectional views or ‘slices’ of body tissues, bones and organs; and if needed, three-dimensional images of the internal organs and structures of the body can be computer generated.
CT imaging is particularly useful because it can show soft tissues in addition to bones, and is now the principle imaging technique for demonstrating the lungs and abdominal organs. CT imaging is also used to generate high resolution pictures of bones when subtle fractures or tumours are suspected. Using specialised equipment and expertise to create and interpret CT scans of the body; radiologists can now diagnose a wider array of illness and injury such as cancers, cardiovascular disease, infectious disease, trauma, and musculoskeletal disorders.
While undergoing a CT scan, you will lie on a table that is then moved into a large donut shaped x-ray machine, which is open at both ends. The procedure is a patient-friendly examination. Although rarely done today, CT scans may be combined with other tests, such as myelograms and discograms to achieve a more accurate diagnosis.
Since its development some 25 years ago, CT imaging has seen massive advances in its technology and clinical performance. The examination is simple and virtually never claustrophobic.