Digital Imaging and Computed Tomography

Since the development of the first system in the early 1970s by Godfrey Houns field and Allan McCormack and its usage in biomedical sciences at the Atkinson Morley's Hospital, London, UK, computed tomography (CT) imaging technique has been redesigned several times. However, the basic principle has remained the same with X-rays used for creating two-dimensional (2D) and three dimensional (3D) images (digital cross sections/ slices) of a physical object taking into account the density differences within the object under study.