Abstract: An X-ray diagnostic apparatus for diagnosing an object to be examined, includes X-ray radiating means for radiating an X-ray on the object to be examined, means for detecting the X-ray passed through the object to be examined and obtaining an X-ray static image of the object to be examined, and means for adding discrimination information to the X-ray static image of the object to be examined and outputting a static image to which discrimination information is added. In addition, the X-ray diagnostic apparatus of the present invention further comprises means for recording a motion image of the object having information corresponding to the static image having to which the discrimination information has been added.

Abstract: An X-ray simulating system for a radiotherapy planning disclosed by this invention includes an acquiring unit for acquiring an image showing a diseased part, a detecting unit for detecting the shape of the diseased part on the basis of the image acquired by the image acquiring unit, a calculating unit for calculating simulation data for radiation on the basis of first data including data related to the shape of the diseased part detected by the detecting unit and second data including data related to radiation conditions in radiotherapy, and a supplying unit for supplying the simulation data calculated by the calculating unit to a radiation therapy apparatus.