A method for identifying the degree of local vascular stenosis in dsa coronary images

A technology for coronary artery and blood vessel stenosis, applied in the field of computer-aided diagnosis, can solve the problem of inability to provide the morphology and properties of atherosclerotic plaques, failure to display diseased vessel walls and atheromatous plaques, coronary atherosclerosis and accurate curative effect of interventional therapy problems such as lowering

Active Publication Date: 2022-04-12
杭州常青藤智慧科技有限公司
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AI Technical Summary

Problems solved by technology

For example, it can only show the condition of the lumen, but cannot show the wall and atheromatous plaque where the lesion is located, and cannot provide detailed information on the shape and nature of the atheromatous plaque, which may make doctors underestimate the degree of coronary artery stenosis
This reduces the accuracy of evaluating coronary atherosclerosis and interventional therapy based on coronary angiography

Method used

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  • A method for identifying the degree of local vascular stenosis in dsa coronary images
  • A method for identifying the degree of local vascular stenosis in dsa coronary images
  • A method for identifying the degree of local vascular stenosis in dsa coronary images

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Embodiment Construction

[0028] Below in conjunction with embodiment and attached Figure 1-4 The present invention will be described in detail, and the relevant data in the experiment of the present invention will be publicly described, and then the method of the present invention will be conveyed in detail and thoroughly to those skilled in the original field.

[0029] Such as image 3 As shown, the specific implementation steps in this embodiment are as follows:

[0030] 1) if figure 2 As shown, DSA images are collected and stored locally, the local image data is selected to read the images, and preprocessing techniques such as median filtering, contrast stretching, and improved multi-scale vessel enhancement filtering are used to de-noise and enhance the contrast images, and select the image of interest Region selection, and according to the overall trend of the coronary artery skeleton, punctuate and select the region requiring lesion diagnosis.

[0031] In this example, the specific process...

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Abstract

The invention discloses a method for identifying the degree of local vascular stenosis in a DSA coronary artery image, comprising the following steps: 1) preprocessing the angiographic image, and segmenting the coronary artery structure; 2) performing edge detection on the coronary artery structure, extracting Vessel boundary information in the region of interest; identify the topological structure of the vessel, and obtain the centerline of the vessel; 3) calculate the radius of the vessel point by point along the centerline of the vessel, and obtain the degree of local vessel stenosis. The invention realizes the interactive measurement of coronary vascular lesions, reduces the diagnostic deviation and underestimation problems caused by manual participation, assists doctors to quickly and accurately process and analyze DSA images, and ensures the application efficiency and objectivity in actual diagnosis Require.

Description

technical field [0001] The invention relates to the field of computer-aided diagnosis, in particular to a method for identifying the degree of local blood vessel stenosis in a DSA coronary artery image. Background technique [0002] Coronary angiography is an effective method for the diagnosis of coronary heart disease. Insert the catheter through the femoral artery, radial artery or other peripheral arteries, send it to the ascending aorta, and then explore the left or right coronary artery for insertion, inject contrast agent, and visualize the coronary arteries. It can more clearly reveal the anatomical deformity of the coronary artery and the location, degree and scope of the obstructive lesion. Coronary angiography is currently the only method that can directly observe the morphology of coronary arteries, and the medical profession calls it the "gold standard". Interventional treatment is required for areas with severe stenosis on angiography. [0003] In clinical pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V40/10G06T7/136
CPCG06T7/136G06V40/10G06V40/15G06V40/14
Inventor 童基均陈灵宇
Owner 杭州常青藤智慧科技有限公司
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