Coronary artery stenosis rate calculation method, device and system based on intracavity images and computer storage medium

Abstract

The invention relates to a coronary artery stenosis rate calculation method, device and system based on intracavity images and a computer storage medium. The method comprises the following steps: S1,acquiring image data related to coronary artery blood vessels, and processing the image data to obtain a plurality of segmented blood vessel images, a central point of each segmented blood vessel image and a three-dimensional catheter path; s2, mapping the blood vessel segmentation image to a three-dimensional catheter path according to the central point of each segmentation blood vessel image, and constructing a blood vessel model in a three-dimensional form; s3, extracting a center line according to the blood vessel model, and calculating to obtain an actual included angle between each segmented blood vessel image and the center line according to the center line and the three-dimensional catheter path; s4, remapping the central point of each segmented blood vessel image to the three-dimensional conduit according to the plurality of actual included angles, and constructing a reconstructed blood vessel model; and S5, calculating the stenosis rate of the blood vessel according to the reconstructed blood vessel model. By adopting the method, the accuracy of calculating the narrower rate can be improved.

Description

technical field [0001] The present application relates to the technical field of data processing of medical images, in particular to a method, device, computer equipment and storage medium for calculating coronary stenosis rate based on intracavity images. Background technique [0002] The vascular stenosis rate is an important indicator for judging whether the blood vessel is normal, and the cross-sectional area of ​​each vascular section needs to be used to calculate the stenosis rate. [0003] In the prior art, when calculating the vascular stenosis rate, it is necessary to reconstruct the three-dimensional model of the coronary artery before performing the calculation. When calculating and generating the three-dimensional point cloud of the coronary artery, only the midpoints (catheter positions) of the N segmented blood vessels are mapped to the three-dimensional intravascular catheter path. However, the angular relationship between the two guides is not considered, bu...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to address the above-mentioned technical problems and provide a lumen-based system that can solve the problem of inaccurate calculation of intravascular stenosis rate when multiple segmented blood vessel images are mapped onto the three-dimensional catheter path without considering the angle between the two. Calculation method, device, computer equipment and storage medium of coronary artery stenosis rate in internal image

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