Method and system for removing artifacts in cerebral angiography

A cerebral vascular and angiography technology, applied in the medical field, can solve problems such as the existence of artifacts and affect the judgment of doctors, and achieve the effect of eliminating artifacts and high accuracy of artifact removal.

Active Publication Date: 2022-05-27
ZHENGZHOU CENT HOSPITAL
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  • Abstract
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Problems solved by technology

However, the elimination of artifacts by image registration is often not ideal, and sometimes there are artifacts, which affect the doctor's judgment

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  • Method and system for removing artifacts in cerebral angiography
  • Method and system for removing artifacts in cerebral angiography
  • Method and system for removing artifacts in cerebral angiography

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[0034] In this document, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such existence between these entities or operations. The actual relationship or sequence. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described bel...

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Abstract

The invention provides a method and system for removing artifacts in cerebral angiography, and the method comprises the steps: dividing brain X-ray images into three types according to the shooting time of a C-shaped arm, namely a brain X-ray image sequence before the injection of a contrast agent, a brain X-ray image sequence after the injection of the contrast agent and a preset time, and a brain X-ray image sequence between the two; the brain X-ray image sequence between the brain X-ray image sequence and the brain X-ray image sequence is processed to obtain an image only comprising artifacts, subtraction is carried out on a cerebral angiography image obtained in a traditional mode, and then artifacts are eliminated. Compared with a traditional cerebral angiography artifact removal method, the cerebral angiography artifact removal method has higher artifact removal accuracy, and a clearer cerebral angiography image can be obtained.

Description

technical field [0001] The present application relates to the medical field, and in particular, to a method and system for removing artifacts in cerebral angiography. Background technique [0002] Cerebrovascular disease is a disease with high incidence and easy recurrence. According to the statistics of the "2020 China Health Statistical Yearbook", the prevalence rate of cerebrovascular disease in 2018 was 22.9‰, and cerebrovascular disease has become a disease that seriously endangers human health. . Cerebral angiography is an important way to diagnose cerebrovascular diseases, especially the application of Digital Subtraction Angiography (DAS) technology, which can obtain high-definition cerebrovascular images. DSA is known as the gold standard for the diagnosis of cerebrovascular diseases. Cerebral angiography can directly observe whether there is malformation, stenosis, dilation, etc. of cerebral blood vessels. DSA has been an important method in the diagnosis of cereb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/5258A61B6/481
Inventor 毛立武康玉琪
Owner ZHENGZHOU CENT HOSPITAL
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