Splicing point multi-branch path planning method and system of virtual bronchoscope

Abstract

The invention relates to the technical field of splicing point multi-branch path planning, in particular to a splicing point multi-branch path planning method of a virtual bronchoscope, which comprises the following step of segmenting a bronchus tree from an acquired lung CT sequence image by using a three-dimensional region growth algorithm. According to the splicing point multi-branch path planning method and system for the virtual bronchoscope, the planning effect of complex multi-branch paths and large-curvature turning branch paths can be achieved through a splicing point path planning algorithm, and a high-quality center line image meeting the requirements for centrality, connectivity and singleness of a center path can be obtained; the methhod is an important premise for planning the bronchial tree path by using a splicing point algorithm, can solve the problem of multi-branch path planning of automatic roaming of the virtual bronchoscope, adopts the splicing point branch path planning algorithm, and can quickly and conveniently plan an automatic roaming path reaching any branch end point after obtaining the complete center line of the bronchial tree.

Description

technical field [0001] The present invention relates to the technical field of multi-branch path planning at a splicing point, in particular to a method and system for planning a multi-branch path at a splicing point of a virtual bronchoscope. Background technique [0002] Virtual endoscopy is a new non-invasive diagnostic method that uses computers to process 3D medical images such as CT and MRI to generate a 3D dynamic view of specific anatomical structures inside the human body to simulate the inspection process and visual effects of a standard endoscope , it has unique advantages such as non-invasiveness, repeated use, dynamic pathological analysis, no inspection dead zone, etc., and has broad application prospects. For this reason, many countries and research institutions have invested a lot of manpower and material resources in research. [0003] Virtual bronchoscopy uses the characteristics of high-resolution CT of the lungs to perform three-dimensional reconstruction...

AI Technical Summary

Problems solved by technology

[0007] Due to the increasingly widespread application of virtual endoscopy, organs with multi-branch lumen structures such as lung bronchi have the same demand for virtual endoscopy technology. After refining the centerline of the entire bronchial tree, Unable to solve the problem of complex multi-branch path planning

[0008] The bronchial tree has a complex and multi-branched structure. After obtaining a complete centerline image of the bronchial tree using the topology refinement method, the coordinates of the centerline obtained along the height direction, that is, the Z-axis direction, are relatively disordered. The path of automatic roaming should be based on the actual It needs to be specific to a certain branch, and there is currently no path planning method for screening out a single branch

Images