Computed tomography with a linear accelerator with radiotherapy applications

摘要: An earlier paper [Simpson et al., Med. Phys. 9, 574 (1982)] described a computed tomography (CT) scanner that was constructed by adding detector array to 4-MV isocentric linear accelerator. Since the previous article, has been improved and we now demonstrate better than 3-mm spatial resolution 1% relative electron density discrimination. A series of pictures from volunteer patients is included. Normal anatomy visualized with bone, muscle, fat, air being clearly delineated.