Coronary artery virtual stent implantation method and system based on haemodynamics analysis

Abstract

The invention discloses a coronary artery virtual stent implantation method and system based on haemodynamics analysis. The coronary artery virtual stent implantation method comprises the steps that CTA image data of a patient are read, plaque is identified, a vascular three-dimensional image model is constructed, the plaque is removed, and the position of the plaque is recorded; the physiological parameters of the patient is received, a CFD boundary condition is set, and CFD calculating is conducted; according to a three-dimensional vascular form, a plaque characteristic and FFR values throughout blood vessels, a lesion is identified; according to the identified lesion, a stent specification database and a virtual stent implantation strategy, an implantation scheme is generated, and a new vascular three-dimensional geometric model is generated; under the new three-dimensional geometric model, fluid calculation is conducted again, according to a preset selecting standard, an optimal stent implantation scheme is output. According to the coronary artery virtual stent implantation method and system, blood vessel stenosis degree calculating, stent implantation strategy generating and quantitative evaluating of the virtual stent implantation effect are completed automatically, the operation scheme is planned accurately, the doctor decision efficiency is improved effectively, and the risk of dependence on the artificial judgment is reduced.

Description

technical field [0001] The invention relates to a coronary artery virtual stent implantation method and system based on hemodynamic analysis. Background technique [0002] Drug therapy, surgical therapy and catheter minimally invasive interventional surgery are the three most commonly used methods for the treatment of coronary heart disease today. Among them, minimally invasive interventional surgery therapy is a special method for diagnosing and treating coronary heart disease by using a special catheter and instrument to insert into the human body through percutaneous puncture or through an original channel of the human body to reach the lesion. Percutaneous transluminal angioplasty (PTCA) is a minimally invasive interventional therapy for coronary heart disease widely used in clinical practice. During the PTCA operation, the tube mesh metal or other material support that is used to implant into the human coronary artery to support and withstand the blood vessel is the co...

AI Technical Summary

Problems solved by technology

However, the disadvantage is that it cannot automatically calculate the degree of vascular stenosis, cannot automatically identify lesions and generate a stent strategy, relies too much on the doctor's experience, cannot predict the impact of stent implantation on the blood flow reserve fraction, and cannot objectively evaluate the improvement of the patient's condition after surgery

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