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Vascular stenosis analysis method and device

A technology for vascular stenosis and analysis methods, which is applied in image analysis, image data processing, instruments, etc., and can solve the problems of stenotic plaques, inaccurate segmentation of blood vessels, and inaccurate stenosis degree.

Pending Publication Date: 2021-01-29
HANGZHOU SHENRUI BOLIAN TECH CO LTD +1
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  • Application Information

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Problems solved by technology

[0003] Most of the existing methods for determining the stenosis degree of the lesioned coronary artery directly estimate the stenosis degree of the lumen on the vascular surface reconstruction (CPR) image or the straightened image. Segmentation is not precise enough to estimate stenosis accurately

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  • Vascular stenosis analysis method and device
  • Vascular stenosis analysis method and device
  • Vascular stenosis analysis method and device

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Embodiment Construction

[0067]In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0068]The inventor found that on cardiac CT angiography (CCTA) images, plaques and blood vessels are segmented, and then the segmentation results are mapped to CPR images and straightened images with multiple set angles to obtain CPR images and straightened images The segmentation of plaques and blood vessels, or the segmentation of plaques and blood vessels on CPR images and straightened images with mu...

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Abstract

The invention discloses a vascular stenosis analysis method, and the method comprises the steps: determining a target image region comprising a blood vessel and a plaque from a target heart CT angiography image, carrying out the segmentation of the target image region, obtaining a segmented blood vessel image and a plaque image, and based on the segmented blood vessel image and plaque image, determining a target vascular stenosis analysis result corresponding to the target heart CT angiography image so that the patch size is very small compared with a blood vessel and a background, and compared with the target heart CT angiography image, a large amount of redundant information is removed from the target image area, thus the preset segmentation model can avoid the interference of a large amount of redundant information in the target heart CT angiography image, and accurately segment plaques and blood vessels in the target image region, i.e., the segmentation accuracy of the plaques andthe blood vessels is improved; therefore, the accuracy of the target vascular stenosis analysis result corresponding to the target heart CT angiography image can be improved.

Description

Technical field[0001]This application relates to the field of medical data analysis, in particular to a method and device for analyzing vascular stenosis.Background technique[0002]Coronary heart disease is one of the most common causes of death in the world. Cardiac CT angiography (CCTA) as a noninvasive and highly sensitive examination method is widely used in various countries. The use of CCTA to determine the degree of stenosis of the diseased coronary lumen has important clinical value for assessing the severity of the disease and guiding treatment.[0003]Most of the existing methods for determining the degree of stenosis of the diseased coronary lumen directly estimate the degree of lumen stenosis on the vascular curved surface reconstruction (CPR) image or the straightened image. The segmentation is not accurate enough, so the estimated degree of stenosis is not accurate enough. Therefore, how to accurately segment plaques and blood vessels is very important for vascular stenos...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/11G06T11/00G06T7/62
CPCG06T7/0012G06T7/11G06T11/003G06T7/62G06T2207/10081G06T2207/30048G06T2207/30101G06T2207/10121
Inventor 王思雯张番栋俞益洲李一鸣乔昕
Owner HANGZHOU SHENRUI BOLIAN TECH CO LTD
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