Patent ID: 7522695
Filing Date: 2009-04-21
Classification: A61B

Abstract:
1. An X-ray CT apparatus comprising: an X-ray data acquisition device comprising an X-ray generator and an X-ray detector positioned opposite the X-ray generator such that the X-ray generator and the X-ray detector are rotated about a center of rotation placed between the X-ray generator and the X-ray detector, the X-ray data acquisition device configured to acquire projection data of X-rays transmitted through a subject disposed between the X-ray generator and the X-ray detector, the X-ray data acquisition device is further configured such that a second detector channel width, d an image reconstructing device configured to image-reconstruct the projection data acquired from the X-ray data acquisition device; a display device configured to display an image-reconstructed image generated by the image reconstructing device; and a control device configured to control an X-ray irradiation area in a row direction such that the X-ray irradiation area differs according to positions in the channel direction.