Blood flow speed calculation method for coronary artery based on radiography image

A coronary blood flow and coronary artery technology, applied in the medical field, can solve problems such as unstable calculation results and difficult suppression of image noise, and achieve the effects of reducing the influence of human factors, easy operation, and wide application

Active Publication Date: 2019-11-15
PULSE MEDICAL IMAGING TECH (SHANGHAI) CO LTD
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Problems solved by technology

In this technical solution, since the obtained contrast image is affected by factors such as heart beating, image noise is not easy to suppress, resulting in unstable calculation results

Method used

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  • Blood flow speed calculation method for coronary artery based on radiography image
  • Blood flow speed calculation method for coronary artery based on radiography image
  • Blood flow speed calculation method for coronary artery based on radiography image

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Embodiment Construction

[0033] The coronary arteries in the embodiments of the present invention are described as follows:

[0034] The coronary artery is divided into left and right branches, the openings of which are located in the left and right coronary sinus respectively, and the left coronary artery is divided into left main (LM), left anterior descending (LAD), and circumflex (LCX). The left main trunk is about 1 to 3 cm long from the root of the aorta. The left anterior descending branch runs in the interventricular groove, and the circumflex branch runs in the left atrioventricular groove. The right coronary artery (RCA) trunk runs in the right atrioventricular groove.

[0035] According to one or more embodiments, a method for calculating coronary blood flow velocity based on angiography images includes the following steps: acquiring a sequence of coronary angiography images by coronary angiography technology. This image sequence reflects the perfusion of the coronary tree. Segmentation i...

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Abstract

The invention relates to a blood flow speed calculation method for the coronary artery based on a radiography image. The method comprises the following steps that a coronary artery radiography image sequence is acquired; each frame of the acquired coronary artery radiography image is divided and subjected to binaryzation, and a coronary artery tree is extracted; target blood vessel center lines are extracted from the coronary artery tree; according to the change condition of the lengths of the target blood vessel center lines of different frames, the average blood flow speed of a target bloodvessel in the filling stage is calculated through fitting.

Description

technical field [0001] The invention relates to the medical field, in particular to a method for calculating blood flow velocity based on contrast images and its use in calculating coronary artery blood flow velocity. Background technique [0002] In recent years, with the acceleration of population aging, the prevalence of risk factors for cardiovascular disease in China has become apparent, leading to a continuous increase in the number of cardiovascular disease, which has become the leading cause of death among urban and rural residents in China, and has also increased the burden on society and families , becoming a major public safety issue. Cardiovascular disease is mainly ischemic heart disease, usually refers to coronary atherosclerotic heart disease or coronary heart disease. [0003] Conventional cardiovascular imaging techniques, such as X-ray coronary angiography, can show the location and extent of blood vessel damage, but there are certain limitations in determ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B6/00
CPCA61B6/507A61B6/481A61B6/5205
Inventor 李莹光张义敏刘新峰梁夫友涂圣贤
Owner PULSE MEDICAL IMAGING TECH (SHANGHAI) CO LTD
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