Patent ID: 7668285
Filing Date: 2010-02-23
Classification: G06T

Abstract:
1. An X-ray computed tomographic apparatus, comprising: a scanning unit configured to scan in a three-dimensional region of a subject by X-rays resulting in projection data; a storing unit configured to store the projection data; a volume data generating unit configured to generate volume data corresponding to the three-dimensional region based on the stored projection data; a slice image data generating unit configured to generate, from the volume data, slice image data relating to each of an axial slice plane, a sagittal slice plane, and a coronal slice plane of the three-dimensional region; a display control unit configured to cause a display to display an axial slice plane image including a two-dimensional overlaid axial graphic element representing an initial axial zooming reconstruction range, a sagittal slice plane image including a two-dimensional overlaid sagittal graphic element representing an initial sagittal zooming reconstruction range, and a coronal slice plane image including a two-dimensional overlaid coronal graphic element representing an initial coronal zooming reconstruction range, the initial axial, sagittal, and coronal zooming reconstruction ranges combining to form an initial zooming reconstruction range; an operating unit operable to enlarge, reduce, and move one of the two-dimensional overlaid axial graphic element, the two-dimensional overlaid sagittal graphic element, and the two-dimensional overlaid coronal graphic element resulting in a final zooming reconstruction range, wherein the final zooming reconstruction range is a three-dimensional region defined by the axial graphic element, the sagittal graphic element, and the coronal graphic element; and a reconstructing unit configured to reconstruct tomographic image data that corresponds to the three-dimensional region of the final zooming reconstruction range defined by the graphic elements and that has a resolution higher than the volume data, by reconstructing the stored projection data.