Coronary artery microcirculation hemodynamics simulation analysis method and device

Abstract

The invention discloses a coronary artery microcirculation hemodynamic simulation analysis method and device. The coronary artery microcirculation hemodynamic simulation analysis method comprises the following steps: 1) acquiring a coronary artery CT angiography image of an object; 2) performing coronary artery three-dimensional reconstruction based on the specific coronary artery CT angiography image of the object to obtain a corresponding coronary artery three-dimensional geometric model of the object; 3) performing grid division and boundary condition setting on the coronary artery three-dimensional geometric model; 4) actually measuring IMR values of all or part of branches of the coronary artery, and correcting the boundary conditions according to the actually measured IMR values of the object; and 5) carrying out hemodynamic simulation analysis on the coronary artery three-dimensional geometric model, calculating and visualizing blood flow velocity distribution and pressure distribution of the coronary artery three-dimensional geometric model, and realizing comprehensive display of the whole coronary artery microcirculation system of the object. According to the method, the IMR value is combined with computational fluid mechanics, so that the medical risk and the operation cost of the invasive operation are reduced.

Description

technical field [0001] The invention relates to the field of hemodynamic simulation analysis, in particular to a coronary microcirculation hemodynamic simulation analysis method and system. Background technique [0002] The clinical methods for assessing coronary microcirculation status are mainly divided into two categories: non-invasive and invasive. Non-invasive evaluation is mainly through transthoracic Doppler echocardiography, single photon emission computed tomography, myocardial magnetic resonance imaging and other methods, but the above non-invasive evaluation methods are greatly affected by the operator's level, equipment resolution and technical means themselves. It is difficult to accurately assess microcirculation status. [0003] Invasive measurement of microcirculatory resistance index (IMR) using pressure guide wire can quantitatively evaluate coronary microcirculation resistance, which is not easily affected by hemodynamic changes, and has the advantages of...

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Problems solved by technology

[0005] In view of this, the present invention provides a coronary microcirculation hemodynamics simulation analysis method and device for the problem of difficulty in comprehensively evaluating the state of the entire coronary microcirculation system in the above-mentioned prior art

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