Patent ID: 8755585
Filing Date: 2014-06-17
Classification: A61B,G06T

Abstract:
1. An X-ray computed tomography apparatus, comprising: an X-ray tube configured to generate an X-ray; an X-ray detector configured to generate projection data by detecting the X-ray transmitted through an object; a rotating unit configured to rotatably support both the X-ray tube and the X-ray detector around the object; a first reconstruction processing unit configured to reconstruct a clinical image by performing first reconstruction processing based on the generated projection data; a second reconstruction processing unit configured to reconstruct a noise image by performing second reconstruction processing different from the first reconstruction processing based on noise data; and an image combining processing unit configured to combine the clinical image with the noise image, wherein noise reduction effect of the second reconstruction processing is smaller than that of the first reconstruction processing, and image granularity of the second reconstruction processing is greater than that of the first reconstruction processing, and the second reconstruction processing unit is configured to reconstruct the noise image based on the noise data, which comprises projection data associated with a plurality of views having only noise components and obtained by scanning.