Angiography method, device, system and equipment and storage medium

Abstract

The invention discloses an angiography method which is applied in a DSA system comprising an X-ray detector. The method includes: when the X-ray detector is at a first position, acquiring an angiography image sequence collected by the X-ray detector and containing multiple angiography images; analyzing the angiography image sequence to acquire a flowing path of a contrast medium; when the circumstance that the contrast medium is about to flow out a collection range of the X-ray detector is determined according to the flowing path, controlling the X-ray detector to move to a second position toenable the contrast medium to be constantly within a collection range; acquiring a mask image when the X-ray detector is at a second position; utilizing the mask image to generate a DSA image. The invention further discloses an angiography device, system and equipment and a storage medium. The image of the contrast medium is ensured to be constantly within the collection range of the X-ray detector by automatically controlling movement of the X-ray detector, so that the method is convenient and quick in realization mode, and angiography efficiency can be improved.

Description

technical field [0001] The present application relates to the technical field of medical imaging, in particular to an angiography method, device, system, equipment and storage medium. Background technique [0002] DSA (Digital Subtraction Angiography, Digital Subtraction Angiography) system is an X-ray imaging system that combines conventional angiography technology with computer image processing technology. The principle of using the DSA system for angiography is: fixedly place the X-ray detector, and collect the images before and after the injection of the contrast agent in the blood vessels of the inspected part through the X-ray detector. The image collected before the injection of the contrast agent is called a mask image. The image collected after the contrast agent is called the contrast image. After subtracting the contrast image and the mask image by the computer, the subtraction image containing only the blood vessel image can be obtained, that is, the DSA image, s...

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Problems solved by technology

[0003] In the related art, since the position of the X-ray detector is fixed, when the contrast agent flows in the blood vessel and flows out of the collection area of ​​the X-ray detector, the doctor can only manually adjust the position of the X-ray detector in order to re-acquire the mask. slice images and angiography images to generate DSA images, but the above manual adjustment process is cumbersome, resulting in low angiography efficiency

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