Magnetic navigation auxiliary calibration method and system based on lung image and storage medium

By acquiring and analyzing lung images, obtaining the shortest navigation path and calibrating using direction feature extraction method, the problem of the catheter not being shortest in the patient's body is solved, achieving a more efficient and safe treatment process.

CN119606535APending Publication Date: 2025-03-14SHANGHAI MEISI PHARM TECH CO LTD
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Patent Information

Application Number
CN202411795921.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-03-14

AI Technical Summary

Technical Problem

The existing magnetic navigation assisted calibration methods based on lung images cannot ensure that the path selected by the catheter after entering the patient's body is the shortest path, resulting in the catheter being in the patient's body for a longer time during treatment, increasing the risk of treatment and reducing treatment efficiency.

Method used

By acquiring magnetic navigation images, analyzing the target area of ​​the lesion, obtaining the shortest navigation path, and using the direction feature extraction method to obtain the navigation direction features. When the catheter enters the patient's lungs, calibrates based on real-time inflection points and calibration ratios and adjusts the catheter route to ensure it is advanced along the shortest path.

Benefits of technology

Ensure that the catheter moves along the shortest path within the patient, reduces treatment time, reduces treatment risk and improves treatment efficiency.

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Abstract

The invention discloses a lung image-based magnetic navigation auxiliary calibration method and system and a storage medium, and relates to the technical field of magnetic navigation, and the method comprises the following steps: obtaining a magnetic navigation image; acquiring a shortest navigation path, acquiring navigation direction features by using a direction feature extraction method, acquiring a real-time inflection point SG of a navigation tube, and acquiring a calibration proportion by using a degree stagger algorithm; when the real-time inflection point SG is marked as a calibration inflection point, adjusting the route of the navigation tube based on the navigation direction characteristics; the method is used for solving the problems that an existing magnetic navigation auxiliary calibration method based on lung images cannot ensure that a path selected after a catheter enters the body of a patient is the shortest path, so that the time of the catheter in the body of the patient during treatment is long, the treatment risk is increased, and the treatment efficiency is reduced.
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Citation Information

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