Conduit viscera dummy cut visualization method based on ergodic cutting vector

Abstract

A visualization method for virtual incision of ductal organs based on traversal resection vectors in the field of image processing technology. In the present invention, the organ image is firstly segmented from the original medical data, the outer wall of the virtual organ is generated by means of expansion, and then the central path is found for the ductal organ, and then the normal vector of the cross-sectional surface is determined for each point on the central path. Then, according to the direction determined by the normal vector of the cross-sectional surface, in the plane perpendicular to the tangent direction of the center line, determine the resection vector, and set the organ volume data traversed by the resection vector as background pixels, and finally carry out the regionalization of the remaining volume data Grow, ensure connectivity, and finally subtract the displayed data from the original data to get the other half of the organs, which are displayed interactively. The invention makes the diagnosis of the colon not limited by the viewing angle of the endoscopic view, becomes intuitive and fast, and at the same time does not bring deformation to the anatomical structure of the inner wall of the colon, and the flat section is accurate and complete, and the observation is convenient.

Description

technical field [0001] The present invention relates to a method in the technical field of image processing, in particular to a visualization method for virtual incision of ductal organs based on traversal resection vectors. Background technique [0002] At present, with the rapid development of CT and MRI technology, virtual endoscopy technology has become the main method for three-dimensional visualization reconstruction and observation diagnosis of ductal organs. This technology simulates the movement of the traditional optical endoscope body in the cavity, and observes the inner wall of the organ from the perspective of the optical endoscope. The beauty of this technique is that it is completely non-invasive. However, the disadvantage of the existing virtual endoscopy technology is that the viewing angle of the endoscope is very limited, and the overall shape of the organ cannot be observed from the outside. The inspection process is too lengthy and cumbersome. [000...

AI Technical Summary

Problems solved by technology

Its shortcomings are: when this method is used to cut the colon, in order to avoid distortion, the colon is divided into multiple segments, which is time-consuming and laborious to check; it is only valid for some segments in the colon; the data after cutting loses its original spatial structure , making the observation not intuitive enough and affecting the location of the lesion

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