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Coronary artery stenosis assessment method and device, a storage medium and electronic equipment

A coronary and stenosis technology, applied in the field of coronary stenosis assessment, can solve problems such as differences between calculation and actual measurement, and achieve accurate assessment of coronary stenosis.

Inactive Publication Date: 2019-04-12
BEJJING SIMPLE VISION TECH CO LTD
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  • Description
  • Claims
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Problems solved by technology

Since this series of assumptions may not be satisfied in actual situations, there is still a large deviation between the calculated FFR and the measured FFR, especially in the critical state of coronary artery stenosis (that is, the FFR is around 0.8) , calculations and measurements often diverge

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  • Coronary artery stenosis assessment method and device, a storage medium and electronic equipment
  • Coronary artery stenosis assessment method and device, a storage medium and electronic equipment

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Embodiment Construction

[0050] Specific embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

[0051] Embodiments of the present disclosure provide a method for evaluating coronary artery stenosis, such as figure 1 shown, including:

[0052] S11. Obtain an angiographic image of a coronary artery.

[0053] Angiography is an interventional detection method in which a contrast agent is injected into blood vessels. Since X-rays cannot penetrate the contrast agent, the contrast agent can show the image of blood vessels under X-ray.

[0054] For example, using CT angiography (CTA, CT angiography) technology, combining CT enhancement technology with thin-slice, large-scale, and fast scanning technology, through reasonable post-processing, can clearly displa...

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Abstract

The invention relates to a coronary artery stenosis assessment method and device, a storage medium and electronic equipment. The method comprises the following steps: acquiring an angiography image ofa coronary artery; performing three-dimensional reconstruction of blood vessels according to the angiography image to obtain a three-dimensional blood vessel model of the coronary artery; aiming at atarget branch of the coronary artery, carrying out a pressure drop test on the three-dimensional blood vessel model to obtain a quadratic function relationship between the blood flow rate and the blood flow pressure of the target branch, the target branch being any branch of the coronary artery; and evaluating the narrow condition of the coronary artery according to the constant coefficient of the quadratic function relationship. The embodiment of the invention is used for evaluating the stenosis degree of the blood vessel.

Description

technical field [0001] The present disclosure relates to the technical field of medical image processing, and in particular, relates to a method, device, storage medium and electronic equipment for evaluating coronary artery stenosis. Background technique [0002] At present, related technologies can reconstruct the three-dimensional vessel shape of coronary arteries based on medical CT (Computed Tomography, computerized tomography) images and MRI (Magnetic Resonance Imaging, magnetic resonance imaging), and can further calculate FFR (Fractional Flow Reserve, coronary flow reserve fraction). [0003] However, in the prior art, the calculation of FFR from three-dimensional coronary images is based on a series of assumptions, including but not limited to: the assumption of coronary blood flow, the blood flow of each branch of the coronary artery, the coronary inlet pressure assumption, the injection gland Hypothesis of decreased peripheral vascular resistance after glycosides...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H50/30G06T7/00
CPCG06T7/0012G06T2207/30104G16H50/30
Inventor 张宇刘健
Owner BEJJING SIMPLE VISION TECH CO LTD
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