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Blood vessel extracting method

An extraction method and blood vessel technology, applied in the field of medical image processing, can solve time-consuming problems

Active Publication Date: 2017-01-04
WUHAN UNITED IMAGING LIFE SCI INSTR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method needs to scan the patient twice, which is time-consuming and brings more scanning radiation to the patient.

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Embodiment Construction

[0062] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0063] Secondly, the present invention is described in detail by means of schematic diagrams. When describing the embodiments of the present invention in detail, for convenience of explanation, the schematic diagrams are only examples, which should not limit the protection scope of the present invention. To make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompa...

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Abstract

The invention discloses a blood vessel extracting method which comprises the following steps of: acquiring a three-dimensional image composed of a plurality of slice images and taking a plurality of connected domains based on gray information of pixels in the slice images; determining a seed point based on the circular degrees of the connected domains; performing, by using the seed point as a starting point, region growing on the three-dimensional image based on a threshold a and acquiring a first image; performing, by using the seed point as a starting point, region growing on the first image based on a first threshold and acquiring a blood vessel mask; obtaining a first subtraction image by subtracting the first image from the blood vessel mask; roughly dividing the first subtraction image and morphologically processing an initial mask to obtain a skeletal mask; obtaining a second subtraction image including the plurality of connected domains by subtracting the first image from the skeletal mask; connecting the plurality of connected domains based on a blood vessel growth condition to obtain a blood vessel extraction result. The blood vessel extracting method can accurately and effectively extract blood vessel tissue.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of medical image processing, in particular to a blood vessel extraction method. [0003] 【Background technique】 [0004] Vascular imaging techniques include CT angiography (CTA, CT angiography), magnetic resonance angiography (Magnetic Resonance Angiography, MRA), and MR non-contrast imaging, which can help doctors diagnose various diseases of blood vessels, such as calcification, stenosis, aneurysm , dura mater, etc. Vascular images obtained by vascular imaging technology are mainly three-dimensional images, which cannot give doctors an intuitive feeling. Therefore, it is necessary to extract blood vessels from medical images and display the shape of blood vessels with three-dimensional display technology to better assist doctors in analyzing lesions, improve the accuracy and scientificity of medical diagnosis, and help formulate optimal treatment plans and surgical planning. , which is of great significanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 赵鹏毛玉妃
Owner WUHAN UNITED IMAGING LIFE SCI INSTR CO LTD
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