Navigation system in puncture ablation under CT and AI dual guidance

Abstract

The invention relates to a navigation system in the puncture ablation under CT and AI dual guidance. The navigation system comprises an organ model establishing module used for carrying out real-timesegmentation on a medical image of a puncture part before an operation and establishing a 3D model for a segmented organ, a puncture path planning module used for establishing an optimal linear path for avoiding segmented tissues and organs around a focus, a positioning module used for positioning a puncture needle in real time so as to determine a needle tip position and angle of the puncture needle, a registration module used for registering the preoperative medical image and an intra-operative medical image to obtain a mixed image, a fusion module used for importing the established 3D modeland the planned optimal linear path into the mixed image to obtain a navigation map of organ segmentation, and a real-time guiding module used for calculating a position deviation between the optimallinear path and an actual needle inserting path so as to guide puncture. The navigation system solves the problem that a doctor depends on the experience in estimating an ablation range and time.

Description

technical field [0001] The invention relates to the field of computer-aided medical technology, in particular to a navigation system for puncture ablation guided by CT and AI. Background technique [0002] CT-guided radiofrequency ablation is to insert a radiofrequency electrode (ablation needle) into the center of the tumor as a heat source under the guidance of CT images, and heat the tumor tissue to a higher temperature within a certain period of time to achieve complete coagulation and necrosis of the tumor immediately. directly kill tumors. Ensuring that the needle tip of the ablation needle accurately penetrates the target inside the tumor is a key link in CT-guided tumor video ablation, which directly affects the treatment effect. Currently, CT-guided tumor ablation therapy is clinically based. Before treatment, physicians draw up a tumor ablation plan based on their understanding of two-dimensional CT images. During the treatment, under the guidance of CT images, p...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a navigation system for puncture ablation under the dual guidance of CT and AI, which solves the problem that the doctor cannot see the real-time images of the puncture needle and the ablation needle during the ablation process, and the estimation of the ablation range and time depends on experience.

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