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Method for identifying local vascular stenosis degree in DSA coronary artery image

A technology for coronary artery and blood vessel stenosis, applied in the field of computer-aided diagnosis, can solve the problem of coronary atherosclerosis and the reduction of the accuracy of interventional therapy, the inability to display the diseased vessel wall and atheromatous plaque, and the underestimation of the degree of coronary artery stenosis by doctors. problems, achieve accurate processing and analysis, ensure application efficiency and objectivity requirements, reduce diagnostic bias and underestimate the effect of problems

Active Publication Date: 2019-11-22
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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  • Method for identifying local vascular stenosis degree in DSA coronary artery image
  • Method for identifying local vascular stenosis degree in DSA coronary artery image
  • Method for identifying local vascular stenosis degree in DSA coronary artery image

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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 to those skilled in the art in detail.

[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 of image preprocessing inc...

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Abstract

The invention discloses a method for identifying the local vascular stenosis degree in a DSA coronary artery image, and the method comprises the following steps: 1), preprocessing a contrast image, and segmenting a coronary artery structure; 2) performing edge detection on the coronary artery structure, and extracting blood vessel boundary information of a region of interest; identifying the topological structure of the blood vessel to obtain a blood vessel center line; and 3) calculating the radius of the blood vessel point by point along the central line of the blood vessel to obtain the local vascular stenosis degree. According to the invention, interactive measurement of coronary vessel lesions is realized, diagnosis deviation and underestimation problems caused by artificial participation are reduced, doctors are assisted in rapid and accurate processing and analysis of DSA images, and application efficiency and objective requirements in actual diagnosis are ensured.

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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IPC IPC(8): G06K9/00G06T7/136
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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