Patent ID: 7283614

Claim:
An X-ray diagnosis apparatus, comprising: an X-ray generating unit configured to irradiate an X-ray to an object; an X-ray detector configured to detect the X-ray irradiated from the X-ray generating unit; a reference image data creation unit configured to create a plurality of sets of reference image data based on projection data obtained from a plurality of imaging directions to the object after a contrast agent is injected into the object; a fluoroscopic image data creation unit configured to create fluoroscopic image data based on projection data obtained from a desired imaging direction to the object; and a fluoroscopic roadmap image data creation unit configured to create fluoroscopic roadmap image data based on the fluoroscopic image data and one set of reference image data of the plurality of sets of reference image data whose imaging direction is closest to the imaging direction of the fluoroscopic image data, and wherein the reference image data creation unit creates DSA image data as the reference image data from mask image data that is obtained before the contrast agent is injected into the object and contrast image data that is obtained after the contrast agent is injected into the object.