Patent ID: 8781068

Claim:
An X-ray image diagnosing apparatus comprising: a top plate for laying a subject to be examined; an X-ray detecting section including an X-ray detector having a first visual field size and a high-resolution detector showing a resolution higher than the X-ray detector and having a second visual field size smaller than the visual field of the X-ray detector; an X-ray generating section for irradiating the subject with X-rays; a holding section for holding the X-ray detecting section and the X-ray generating section so as to make them face each other; an image processing section for generating a first X-ray image by means of the X-ray detector and a second X-ray image by means of the high-resolution detector; a display section for displaying the first X-ray image and the second X-ray image; a region defining section for displaying a spot corresponding to part of the second X-ray image or a region corresponding to the second X-ray image on the first X-ray image and specifying the position of the high-resolution detector by moving the spot or the region; a positional displacement calculating section for determining the coordinate difference between the center position of the first X-ray image and the position of the spot indicating the specified position of the high-resolution detector or a substantial center position of the region; and a move control section for controlling the top plate or the holding section so as to move the substantial center position of the second X-ray image to a substantial center of the image display region of the display section.