X-ray image processing method

Abstract

The invention provides an X-ray image diagnosis device and an X-ray image processing method. The X-ray image diagnosis device includes: an imaging unit that includes an X-ray generation unit and an X-ray detection unit, which are supported so as to be opposed to each other and rotatable about the body axis of a subject placed; a control unit that performs 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 such that a part of the first angular range and a part of the second angular range are overlapped with each other; and an image data processing unit that performs image reconstruction processing after compensating a displacement occurring between the images obtained by the first and second imaging operations.

Description

[0001] This application is a divisional application of the application dated January 27, 2010, the application number is 201010104077.5, and the title of the invention is "X-ray image diagnostic device and X-ray image processing method". [0002] This application is based on and claims priority from prior Japanese Patent Application No. 2009-25842 filed on February 6, 2009, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to an X-ray image diagnostic device and an X-ray image processing method suitable for the diagnosis of capillary blood flow. Background technique [0004] Conventionally, when endovascular treatment of circulatory organ diseases is performed, plaques may scatter and block capillaries. Therefore, after the treatment, the blood flow in the capillary phase is checked using an X-ray CT device or an angiography device. [0005] In addition, there is also known a method in which, in order t...

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Problems solved by technology

[0013] However, since the time for the blood containing the contrast agent to flow through the artery to the capillary is very short, even if an image of the capillary phase is taken, an image of the blood vessel including the arterial phase and the venous phase will be collected, so reconstruction will be difficult. become an image with many artifacts

In addition, when photographing angiography images, when the subject moves, there may be a shift in the images obtained by the first and second photographs.

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