Method for computer-assisted rebuilding heart mitral annulus

Abstract

The invention relates to a heart bicuspid valve linkcomputer assistance reconstruction method of computer application technology area, first uses man-machine interactive way select bicuspid valve link characteristic point, next when reorganized above bicuspid valve link characteristic point, uses the triaxiality ordering method, forms a sealed ordering triaxiality lattice sequence, finally based on this, uses the non-uniform three B spline curve achieve reconstruct of the bicuspid valve link structure. This invention beneficial effect is: (1) based on the man-machine interactive way direct select spot on bicuspid valve link, compare to use the algorithm division, can enhance point accuracy of selecting cingulum characteristic; (2) uses the non-uniform three B spline curve reconstruct triaxiality bicuspid valve linkstructure, because NURBS may maintain independence of the edge characteristic, and not easily influent by other control points, therefore can accurately display the bicuspid valve link such triaxiality complex structure.

Description

technical field [0001] The present invention relates to a method in the field of computer application technology, in particular, a method for computer-aided reconstruction of cardiac mitral annulus. Background technique [0002] At present, 3D ultrasound imaging has shifted from the application of computer graphics to the reconstruction of computer stereoscopic models of 3D objects. A typical model reconstruction method is the voxel model method (Voxel model), which divides the three-dimensional object into small cubes arranged in sequence. A small cube is a voxel, and a voxel can be considered as an extension of a pixel in three-dimensional space. A certain number of voxels can be arranged according to the corresponding spatial positions to form a three-dimensional image, so as to achieve the purpose of reconstructing three-dimensional objects. [0003] It is found through literature search of the prior art that the application of the typical voxel model method in medical ...

AI Technical Summary

Problems solved by technology

Although this method can dynamically reconstruct the tissue gray-scale information of the heart and blood vessel structure in three dimensions, and cut the heart dynamically from various angles at will, it is not easy to distinguish the two-sided Delicate tissues such as the annulus are separated from other devices, so this method is not very accurate in reconstructing the annulus from 3D ultrasound images

Images