Patent ID: 7440538
Filing Date: 2008-10-21
Classification: A61B

Abstract:
1. A radiation imaging apparatus comprising: a radiation generating source for radiating radiation to a subject; a rotating unit for rotating the subject exposed to the radiation from the radiation generating source; a control unit for activating the radiation generating source to start radiating radiation at a time when the subject rotates at a predetermined angle in rotation; a two-dimensional detector for converting the radiation into image data, the two-dimensional detector being disposed at a distance, not shorter than 200 cm and not longer than 400 cm, from the radiation generating source for imaging a chest area; and a reconstruction unit for reconstructing the image data which is picked up by the two-dimensional detector to produce reconstruction data, wherein the image data picked up by the two-dimensional detector is reconstructed by the reconstruction unit to thereby obtain reconstruction data if an image of the subject is picked up while the subject is rotated by the rotating unit; and the image data picked up by the two-dimensional detector is obtained as general photographed image data instead of performing reconstruction by the reconstruction unit if an image of the subject is picked up while the rotation of the rotating unit is stopped.