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Method and apparatus for segmenting tissue in CTA image

An image-in-image technology, which is applied in the field of image processing, can solve problems such as increasing user workload, unfavorable doctor operation, and inability to perform automated batch operations, achieving the effect of reducing workload and facilitating operation

Active Publication Date: 2016-04-20
NEUSOFT CORP
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  • Description
  • Claims
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Problems solved by technology

This semi-automatic method requires the manual participation of the user, increases the workload of the user, and cannot perform automated batch operations, which is not conducive to the operation of doctors

Method used

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  • Method and apparatus for segmenting tissue in CTA image
  • Method and apparatus for segmenting tissue in CTA image
  • Method and apparatus for segmenting tissue in CTA image

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar modules or modules having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

[0023] figure 1 It is a schematic flow chart of a method for segmenting tissue in a CTA image proposed by an embodiment of the present invention, and the method includes:

[0024] S11: Preprocessing the CTA image.

[0025] The preprocessing includes, for example, performing thresholding processing on the CTA image, and the threshold used in the thresholding processing can be ...

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Abstract

he invention provides a method and apparatus for segmenting a tissue in a CTA image. The method comprises: pretreatment is carried out on a CTA image; a watershed operation is carried out on an original image after pretreatment to determine basins, and combination information between the basins and statistic information of the basins are recorded; boundary distance values of specific pixel points are obtained, tissue identification is carried out on the basins based on the boundary distance values and the statistic information of the basins, the parts of basins are marked as bone basins or blood vessel basins; according to the recorded combination information between the basins, unmarked basins are combined with the marked basins; and according to the combination result, a morphological operation is carried out and a tissue segmentation result of the CTA image is displayed. With the method, the work load of the user can be reduced and the user operation becomes convenient.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a method and device for segmenting tissue in a CTA image. Background technique [0002] CT angiography (Computed Tomographic Angiography, CTA) is the main method for examining blood vessels in clinical practice. In CTA images, due to the injection of contrast agents in blood vessels, bones and blood vessels overlap to a certain extent in three-dimensional visualization, which seriously affects the observation, diagnosis and analysis of blood vessels by clinicians. In order to facilitate clinicians to visually observe the vascular structure to detect vascular stenosis, calcification and aneurysm, it is necessary to segment bones and blood vessels in CTA images. However, because the CT values ​​of bones and blood vessels overlap to a certain extent and the blood vessels contain a large number of high-density substances, such as calcification, stents, etc., and the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T2207/10081G06T2207/20152G06T2207/30101
Inventor 蔡金凤佟斌郑凌付超张陈
Owner NEUSOFT CORP
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