Patent ID: 8447088
Filing Date: 2013-05-21
Classification: A61B,G06T

Abstract:
1. An X-ray imaging system comprising: an imaging unit for irradiating a subject with X ray at different angles while moving an X-ray source in one direction in tomosynthesis imaging, detecting the X ray with which the subject has been irradiated with a flat panel detector to acquire projection data of X-ray images taken at different angles; and an image processor for reconstructing a first X-ray tomographic image using projection data of the X-ray images acquired by the imaging unit, the image processor including: a correction decision unit for selecting, according to a given selection condition, one of previously provided different corrections to be performed on the projection data of the X-ray images acquired by the imaging unit; a first image correction unit for performing correction based upon the correction selected by the correction decision unit on the projection data of the X-ray images acquired by the imaging unit; and a first image reconstruction unit for reconstructing the first X-ray tomographic image using the projection data of the X-ray images corrected by the first image correction decision unit, wherein the image processor comprises: a second image correction unit for performing a previously provided correction on the projection data of the X-ray images acquired by the imaging unit; a second image reconstruction unit for reconstructing a second X-ray tomographic image using the projection data of the X-ray images corrected by the second image correction decision unit; and a selector for selectively outputting the first X-ray tomographic image reconstructed by the first image reconstruction unit and the second X-ray tomographic image reconstructed by the second image reconstruction unit at a given timing.