ABSTRACT
The basic concept of computing a cross-sectional image from
multiple x-ray projections to create images of an anatomic
structure has remained the fundamental principle of com-
puted tomography (CT) since its origin in 1971. The evolu-
tion of this powerful tool has been spearheaded by hardware
and software advances that allow for rapid, robust acquisi-
tion of scan data and prompt, flexible workstation display.
