| 摘要 |
PROBLEM TO BE SOLVED: To provide an X-ray tomographic apparatus capable of securing the relevance in intermittent tomography by unifying the coordinate systems of a plurality of images. SOLUTION: In the measuring device, the region for the X-ray photography of a subject 2 to be photographed by an X-ray photography means 1 is positioned by the X-ray photography means 1 rotating around the subject 2 for photographing an X-ray three-dimensional image and a visible light photography means 13 set near the X-ray photographing means for photographing the visible-light three-dimensional image of the subject and by using the visible-light three-dimensional image obtained by the visible-light photographing means. The measuring device is composed of a means for determining the anatomical coordinate system of the subject by extracting the quantity of characteristics of the region to be photographed from a plurality of intermittently photographed visible-light three-dimensional images, and a means for unifying coordinate systems of a plurality of intermittently photographed X-ray three-dimensional images by the coordinate transformation of the X-ray three-dimensional images photographed at the same time as the visible-light three-dimensional images based on the obtained anatomical coordinate system. With this structure, confirmation before/after the operation, and confirmation of the progress of correction can be easily carried out. COPYRIGHT: (C)2008,JPO&INPIT
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