Method for establishing blood flow calculation model to evaluate coronary artery blood flow

A coronary blood flow and calculation model technology, applied in the field of computational fluid dynamics, can solve the problems of low calculation efficiency and achieve the effect of high calculation accuracy, high efficiency and excellent efficiency

Active Publication Date: 2022-06-24
苏州数算软云科技有限公司 +1
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Problems solved by technology

[0003] Although the LBM (Lattice Bolzmann Method) method can be applied to computational fluid dynamics, it has the problem of low computational efficiency

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  • Method for establishing blood flow calculation model to evaluate coronary artery blood flow
  • Method for establishing blood flow calculation model to evaluate coronary artery blood flow
  • Method for establishing blood flow calculation model to evaluate coronary artery blood flow

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Embodiment Construction

[0029] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] In the method for establishing a blood flow calculation model in the embodiment of the present invention to evaluate coronary blood flow, the flow field mechanics model established by the lattice Boltzmann method and the adaptive grid technology is used to calculate the blood flow required in the diagnosis of coronary heart disease. Flow Reserve Fractional FFR.

[0031] like figure 1 As shown, the method for establishing a blood flow calculation model for evaluating coronary bloo...

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Abstract

The present invention proposes a method for establishing a blood flow calculation model to evaluate coronary blood flow, including: establishing a three-dimensional model of the heart, including: obtaining a two-dimensional grayscale picture of the CT imaging of the heart by scanning with a CT device, and converting the heart The two-dimensional grayscale images of CT imaging are binarized and stacked according to the preset relationship to obtain the three-dimensional structure of the coronary artery after stacking; the fluid dynamics model of the blood is established, including: using adaptive local encryption technology to analyze the structure of the three-dimensional heart model Carry out discrete gridding to generate an adaptive dense grid; establish a lattice Boltzmann method LBM blood flow calculation model based on the adaptive dense grid; calculate the fractional blood flow reserve (FFR). The fluid calculation model established by the present invention has the characteristics of high calculation accuracy and high efficiency, so that the calculated blood flow reserve fraction has high accuracy and less calculation time, and the evaluation of coronary artery blood flow has higher accuracy and higher efficiency.

Description

technical field [0001] The invention relates to the technical field of computational fluid dynamics, in particular to a method for establishing a blood flow calculation model for evaluating coronary blood flow. Background technique [0002] In the prior art, in the calculation and analysis of coronary blood flow, the fluid model established by calculating the "flow reserve fraction" is to solve the N-S equation with the finite element method, and the finite element method is limited in the calculation domain and the processing of complex boundaries. , which computes a laminar flow model. [0003] Although LBM (Lattice Bolzmann Method) method can be applied to computational fluid dynamics, it has the problem of low computational efficiency. Therefore, there is a need to provide a method for evaluating coronary blood flow with a computational process that is not limited by boundaries and has higher computational efficiency. SUMMARY OF THE INVENTION [0004] The purpose of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/20
CPCG06T17/20G06T2210/41
Inventor 郭志鹏李忠伟张伟
Owner 苏州数算软云科技有限公司
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