Patent ID: 8229066

Claim:
An X-ray image diagnosis apparatus comprising: an imaging unit that includes an X-ray generation unit for irradiating X-ray onto a subject and an X-ray detection unit for detecting X-ray transmitted through the subject, which are supported so as to be opposed to each other and rotatable about the body axis of the subject placed on a bed; a control unit that rotates, after injection of contrast medium into the subject, the imaging unit about the body axis of the subject to perform imaging for obtaining images within a predetermined angular range required for image reconstruction, the control unit rotating the imaging unit within a first angular range to perform a first imaging operation and then rotating the imaging unit within a second angular range to perform a second imaging operation, and performs overlapped dense imaging for a phase in which blood containing the contrast medium flows in capillaries as an area to be reconstructed, and performs sparse imaging for a phase in which blood containing the contrast medium flows from the artery to capillaries and from the capillaries to a vein; and an image data processing unit that performs image reconstruction processing based on two images obtained through the first and second dense imaging operations after compensating a displacement occurring between the images obtained by the first and second imaging operations.