Interactive path planning method and system for microwave ablation operation

Abstract

The invention provides an interactive path planning method and system for a microwave ablation operation. The interactive path planning method comprises the steps of inputting CT / MR image data, automatically generating a coarsely segmented to-be-ablated area, interactively confirming the to-be-ablated area and obtaining a fine to-be-ablated area. According to the obtained fine to-be-ablated area, an erosion algorithm in morphology is used to obtain a feasible point area in the ablated area, and the position of a feasible ablated point is calculated according to a set condition; obtaining a temporary ablation point; performing simulation calculation on the finally generated ablation area according to the temporary ablation point, and dynamically predicting the ablation area; and evaluating and planning an ablation path. Through introduction of image information, the feasible ablation point is semi-automatically determined, and the workload of path planning of a doctor is reduced. Through the use of the simulation module, the ablation result is estimated more finely, and the reliability of ablation path planning is improved. Through interactive design, each key process is adjusted and confirmed, and the safety and reliability of path planning are improved.

Description

technical field [0001] The present invention relates to the medical field, in particular to an interactive path planning method and system for microwave ablation surgery. Background technique [0002] Microwave ablation surgery is one of the most advanced physical therapy methods in current tumor treatment methods. In traditional microwave ablation surgery, preoperative doctors need to determine the ablation point and needle path planning based on the patient's CT images and experience, and there is a lack of quantitative planning results. Evaluate. On the other hand, the traditional path planning algorithm often assumes the ablation range to be a fixed shape, and lacks dynamic prediction of the change of the ablation range caused by different ablation positions, which is likely to have an adverse effect on planning. [0003] The patent document CN113456219A discloses a method and device for path planning of liver cancer radiofrequency ablation surgery based on CT images. ...

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Problems solved by technology

Zhang Rui's published paper: In the research on the surgical path planning method and system of CT-guided thermal ablation therapy for liver tumors, the preset assumption of the shape of the ablation area is also used, and the difference in the shape of the ablation area at different positions is not considered

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