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Method for establishing blood flow calculation model for evaluating coronary arterial blood flow situation

A coronary blood flow and calculation model technology, applied in calculation, 3D modeling, image data processing, etc., can solve the problem of low calculation efficiency and achieve the effect of high calculation accuracy, high precision and less calculation time

Active Publication Date: 2018-10-02
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 for evaluating coronary arterial blood flow situation
  • Method for establishing blood flow calculation model for evaluating coronary arterial blood flow situation
  • Method for establishing blood flow calculation model for evaluating coronary arterial blood flow situation

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] The method for establishing a blood flow calculation model in the embodiment of the present invention to evaluate the coronary blood flow situation uses the flow field mechanics model established by the lattice Boltzmann method and the self-adaptive grid technology to calculate the blood flow required for the diagnosis of coronary heart disease. Flow Reserve Fraction FFR.

[0031] Such as figure 1 As shown, the method for establishing a blood flow calculation model in an embodiment of the present invention to evaluate cor...

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Abstract

The invention provides a method for establishing a blood flow calculation model for evaluating a coronary arterial blood flow situation. The method comprises the steps of: establishing a three-dimensional model of a heart, wherein the establishment is implemented by scanning to obtain CT imaging two-dimensional grayscale images of the heart by utilizing CT equipment, performing binarization processing on the CT imaging two-dimensional grayscale images of the heart, stacking the images according to a preset relation, and acquiring a coronary artery three-dimensional structure after stacking; establishing a hydrodynamic model of blood, wherein the establishment is implemented by adopting a self-adaptive local encryption technology to perform discrete gridding on a three-dimensional heart model structure to generate self-adaptive refined grids, and establishing a lattice Boltzmann method (LBM) blood flow calculation model based on the self-adaptive refined grids; and calculating a fractional flow reserve (FFR). The fluid calculation model established in the invention has the advantages of high calculation precision and high efficiency, so that the calculated fractional flow reserve has high precision, the calculation time is short, the precision of evaluating the coronary arterial blood flow situation is higher, and the efficiency is higher.

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 artery blood flow. Background technique [0002] In the prior art, in the calculation and analysis of coronary artery blood flow, the fluid model established by calculating the "blood flow reserve fraction" is to use the finite element method to solve the N-S equation, and the finite element method is limited in the calculation domain and the processing of complex boundaries , the calculation is a laminar flow model. [0003] Although the LBM (Lattice Bolzmann Method) method can be applied to computational fluid dynamics, it has the problem of low computational efficiency. Therefore, it is necessary to provide a method for evaluating coronary artery blood flow that is not limited by boundaries and has higher calculation efficiency. Contents of the invention [0004] The aim o...

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Application Information

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Patent Type & Authority Applications(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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