X-ray computed tomography method and system

摘要: An X-ray computed tomography (CT) method of producing sectional images and panoramic while reducing the exposure dose time. The includes an projection image on a two-demensional sensor by turning rotary arm within scope angle according to conditions, locally radiating conical beams, with small width in rotating direction center fixed at position region be X-rayed are processed using specific equation as previously prepared computer extract information, thereby produce local object examined.