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Plaque recognition method and device for coronary angiography image, equipment and medium

A technology of contrast-enhanced image and recognition method, which is applied in the image field and can solve the problems of low lumen accuracy and difficult setting

Pending Publication Date: 2020-05-12
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the distribution area of ​​some CT values ​​of hard plaques and stents overlaps with the CT values ​​of angiographic vessels, which makes it difficult to set the threshold for distinguishing hard plaques from stents and the CT values ​​of angiographic vessels. cavity accuracy is low

Method used

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  • Plaque recognition method and device for coronary angiography image, equipment and medium
  • Plaque recognition method and device for coronary angiography image, equipment and medium
  • Plaque recognition method and device for coronary angiography image, equipment and medium

Examples

Experimental program
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Embodiment 1

[0022] figure 1 It is a flow chart of a method for identifying plaques in coronary angiography images provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of identifying plaques in coronary angiography images. The method can be performed by a plaque identification device for coronary angiography images, and the plaque identification device for coronary angiography images can be implemented in the form of software and / or hardware, for example, the plaque identification device for coronary angiography images can be configured in computer equipment. Such as figure 1 As shown, the method includes:

[0023] S110. Acquire a coronary angiography image to be identified.

[0024] In this embodiment, the coronary angiography image to be identified may be an angiography image in which the coronary tree and the coronary artery centerline have been extracted, and the coronary artery centerline has been named. Optionally, after the coronary ...

Embodiment 2

[0037] figure 2It is a flow chart of a method for identifying plaques in coronary angiography images provided by Embodiment 2 of the present invention. This embodiment is further optimized on the basis of the foregoing embodiments. like figure 2 As shown, the method includes:

[0038] S210. Acquire a coronary angiography image, and extract a coronary artery tree and a coronary artery centerline from the coronary angiography image.

[0039] In this embodiment, the extraction of coronary tree is embodied. Firstly, a coronary angiography image is acquired, and a coronary artery tree and a coronary artery centerline are extracted from the coronary angiography image. Optionally, coronary tree can be extracted by region growing method. Wherein, there may be one or more seed points. Considering that the coronary tree is divided into left coronary artery and right coronary artery, more than two seed points are selected for coronary tree extraction. Optionally, multiple seed p...

Embodiment 3

[0064] image 3 It is a schematic structural diagram of a plaque recognition device for coronary angiography images provided by Embodiment 3 of the present invention. The plaque identification device for coronary angiography images may be implemented in the form of software and / or hardware, for example, the plaque identification device for coronary angiography images may be configured in a computer device. like image 3 As shown, the device includes a contrast image acquisition module 310 and an image plaque identification module 320, wherein:

[0065] Angiography image acquisition module 310, configured to acquire coronary angiography images to be identified;

[0066] Image plaque recognition module 320, configured to input the coronary angiography image to be recognized into a fully trained plaque recognition model, and obtain a recognition result output by the plaque recognition model, wherein the plaque recognition model Training samples are generated based on unlabeled...

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Abstract

The embodiment of the invention discloses a plaque recognition method and device for a coronary angiography image, equipment and a medium. The method comprises the steps of acquiring a coronary angiography image to be recognized; and inputting the coronary angiography image to be recognized into a completely trained plaque recognition model to obtain a recognition result output by the plaque recognition model, a training sample of the plaque recognition model being generated based on an unlabeled coronary angiography image and a labeled coronary non-angiography image. According to the plaque recognition method for the coronary angiography image, the plaque recognition model is trained based on the labeled coronary non-angiography image and the unlabeled coronary angiography image, so thatplaques recognized by the plaque recognition model are more accurate.

Description

technical field [0001] Embodiments of the present invention relate to the field of image technology, and in particular, to a plaque recognition method, device, equipment and medium for coronary angiography images. Background technique [0002] Coronary stenosis is an important cause of angina pectoris, myocardial infarction and sudden cardiac death. Therefore, the detection of coronary stenosis is particularly important. In the detection process of coronary artery stenosis, plaque extraction needs to be performed on coronary artery images. Existing plaque detection is divided into hard plaque detection and soft plaque detection. In the process of coronary artery extraction, since angiographic vessels, stents, and hard plaques also present high CT values, therefore, coronary artery extraction will include Scaffolds and hard plaques are extracted together, while soft plaques exhibit lower CT values ​​and will not be extracted. Therefore, if a true coronary lumen is desired,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0012G06T2207/20081G06T2207/10081G06T2207/30101
Inventor 王晓东苏赛赛
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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