Method, device, system and computer storage medium for calculating blood flow reserve fraction based on intracavity images

Abstract

The present application relates to a method, device, system and computer storage medium for calculating fractional blood flow reserve based on intracavitary images, wherein the method for obtaining fractional blood flow reserve includes step S1 of acquiring image data related to coronary vessels, by The processing of the image data constructs a corresponding three-dimensional blood vessel model; wherein the image data related to coronary vessels includes: intracavitary image data and coronary angiography image data; Step S2, calculate blood flow according to the three-dimensional blood vessel model and a fluid dynamic method Equation to obtain the hemodynamic parameter distribution of the coronary arteries in the region represented by the three-dimensional vascular model; step S3, calculating the blood flow reserve fraction according to the hemodynamic parameters obtained in step S2. The invention can accurately calculate and obtain the patient's coronary artery FFR.

Description

technical field [0001] The present application relates to the technical field of data processing of medical images, and in particular, to a method, device, system and computer storage medium for calculating fractional blood flow reserve based on intraluminal images. Background technique [0002] Coronary angiography was once considered the "gold standard" for the diagnosis of coronary heart disease, but it can only qualitatively evaluate the degree of stenosis, but cannot quantitatively evaluate the impact of stenosis on coronary physiology, so it may overestimate or underestimate the disease. The severity of the disease results in untreated lesions requiring treatment or overtreatment of lesions requiring no treatment. In 1993, NicoPijls et al. proposed a new index of coronary blood flow through pressure measurement, Fractional Flow Reserve (FFR). After long-term basic and clinical research, FFR has become a recognized index for functional evaluation of coronary stenosis. ...

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Problems solved by technology

[0005] Although intravascular imaging (IVUS / OCT) can effectively obtain information on vascular stenosis, intravascular ultrasonography (IVUS) and optical coherence tomography (OCT) do not have the function of measuring blood flow reserve fraction, and cannot judge whether the coronary artery exists or not. functional stenosis

If the doctor needs to measure the blood flow reserve fraction, he also needs to use an invasive pressure guide wire, and at the same time, measure it under the condition induced by intravenous administration of adenosine (the coronary artery is in the state of maximum congestion), which increases the complexity of the operation and will harm the patient. Incurring increased risk and additional costs

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