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A method and device for extracting a tubular structure

A tubular structure and extraction method technology, applied in the field of medical image processing, can solve the problems of complex spatial position of blood vessels, incomplete blood vessel extraction, etc., and achieve the effect of high accuracy and robustness

Active Publication Date: 2021-06-29
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0004] In the prior art, due to the close proximity of blood vessels and surrounding bones, the spatial position of blood vessels is intricate. When blood vessels are extracted by simple algorithms such as region growth and level set, due to the influence of surrounding bones on the connectivity of blood vessels, and the relationship between blood vessels and surrounding bone ash The similarity of the degree value is especially easy to cause the problem of incomplete blood vessel extraction

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  • A method and device for extracting a tubular structure
  • A method and device for extracting a tubular structure
  • A method and device for extracting a tubular structure

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Embodiment Construction

[0054] In order to better understand the technical solutions of the present invention, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0055] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0056] Terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a", "said" and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0057] It should be understood that although the...

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Abstract

Embodiments of the present invention provide a method and device for extracting tubular structures, which relate to the technical field of medical image processing, and can extract relatively accurate and complete tubular structures based on a connected domain judgment method and / or a probabilistic positioning method. The method includes determining an area containing a specified tubular structure in a medical image; according to the characteristics of the specified tubular structure, extracting M seed points of the specified tubular structure in the area through a specified method, and M is greater than 1; wherein , the specified method includes at least one of the connected domain judgment method and the probability positioning method; among the M seed points, select the start-end seed point and the end-end seed point; based on the selected start-end seed point and Termination end seed point, to extract the specified tubular structure. The technical solutions provided by the embodiments of the present invention are applicable to the medical image processing process related to the extraction of tubular structures.

Description

【Technical field】 [0001] The invention relates to the technical field of medical image processing, in particular to a tubular structure extraction method and device. 【Background technique】 [0002] In the process of diagnosing vascular diseases, such as aneurysms and vascular stenosis, in order to better observe blood vessels, it is usually necessary to separate blood vessel images from other tissue images, that is, to extract blood vessels. [0003] Currently, among techniques for extracting blood vessels based on Computed Tomography Angiography (CTA), extraction of CTA blood vessels of the head and neck is a more challenging task. Because the internal carotid artery passes through the skull to supply blood to the front and middle of the brain; and the left and right vertebral arteries travel through the vertebrae, and finally merge into the basilar artery to pass through the occipital bone to supply blood to the back of the brain. The blood vessels are close to the surrou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/46
CPCG06V40/10G06V40/14G06V10/40G06V2201/03
Inventor 毛玉妃刘钦
Owner SHANGHAI UNITED IMAGING HEALTHCARE