Patent ID: 7881423
Filing Date: 2011-02-01
Classification: A61B

Abstract:
1. An X-ray CT apparatus comprising: an imager system configured to include a table-top and gantry which has at least an X-ray tube and a multi-slice detector; an input device configured to input a line-of-sight direction; a mode setter configured to set a mode in a CT mode; a tomographic image generator configured to perform a tomographic imaging of a subject in which X-rays forming a cone beam are irradiated from the X-ray tube to the multi-slice detector, and to generate tomographic images based upon the tomographic imaging; an image data storage device configured to store image data based upon the tomographic images; a three-dimensional image processor configured to perform three-dimensional image processing on the image data and to generate a three-dimensional image, for display, corresponding to an input line-of-sight direction; a mode switcher configured to switch the mode only between a transmission mode and the CT mode; a drive controller configured to control an alignment of an imager system depending upon an image-taking direction corresponding to the line-of-sight direction; a transmission image generator configured to perform a transmission imaging of the subject in which the X-rays are irradiated from the X-ray tube aligned by the drive controller to the multi-slice detector aligned by the drive controller, and to generate a transmission image, based upon the transmission imaging, in the image-taking direction corresponding to the line-of-sight direction of the displayed three-dimensional image generated by the CT mode; and a transmission image displayer configured to display the transmission image in substantially real-time.