Image-Segmented Puncture Guidance with Coordinate Mapping
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Solution Overview
Problem
Existing CT-guided percutaneous lung biopsy methods suffer from poor puncture operation accuracy, large radiation damage, and invisible target areas, necessitating improved methods for precise and efficient puncture guidance.
Innovation Solution
A method and system utilizing image segmentation models and positioning patches to establish a mapping relationship between preoperative and intraoperative spatial coordinate systems, generating guide information for puncture needle navigation, enhanced by deep learning technology for automatic detection and segmentation of anatomical structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional CT-guided percutaneous puncture methods are used, then puncture operation can be performed, but puncture operation accuracy is poor
Solution Approach 1:
The patent replaces traditional mechanical CT-guided puncture methods with an electromagnetic navigation system that uses magnetic field positioning and image segmentation technology. The system substitutes manual mechanical positioning with automated electronic guidance, achieving higher precision through coordinate system mapping and real-time position feedback.
Solution Approach 2:
The patent creates a virtual copy of the anatomical structure through image segmentation and coordinate system mapping. By establishing a mapping relationship between preoperative and intraoperative coordinate systems, the system generates a virtual navigation model that guides the physical puncture needle, improving accuracy without requiring repeated CT scans.
2Measurement precision
If repeated CT scans are performed during puncture to ensure accuracy, then puncture accuracy may improve, but radiation damage increases
Solution Approach 1:
The patent performs comprehensive image segmentation and coordinate system mapping before the puncture procedure. By pre-establishing the navigation model and mapping relationship between coordinate systems, the system eliminates the need for repeated intraoperative CT scans, thereby reducing radiation exposure while maintaining puncture accuracy through real-time position guidance.
Solution Approach 2:
The patent replaces repeated CT scanning with electromagnetic navigation technology that uses magnetic field positioning and pre-established image models. This substitution eliminates the need for additional ionizing radiation during the procedure, using instead non-ionizing electromagnetic fields for real-time guidance.
3Ease of operation
If traditional puncture guidance methods are used, then puncture can be performed, but target area is invisible
Solution Approach 1:
The patent creates a visual copy of the anatomical target and puncture path through image segmentation and virtual navigation model generation. The segmented images and coordinate mapping produce a visible digital representation of the target area, allowing real-time monitoring of needle position relative to anatomical structures without losing critical spatial information.
Solution Approach 2:
The patent introduces an intermediate virtual navigation system that mediates between the physical puncture needle and the anatomical target. This intermediary system processes image data, establishes coordinate mappings, and provides real-time visual feedback, making the invisible target and path visible through electronic display and guidance.
Data Source
AI summary
Disclosed are a method, a system, and an apparatus for generating guide information, and an electronic device. The method includes: obtaining image data to be identified of a detection target; segmenting the image data to be identified by using a trained image segmentation model to obtain segmented target image data; determining image data of positioning patches arranged on a body surface of the detection target in the target image data as feature points, and establishing a mapping relationship between a preoperative spatial three-dimensional image coordinate system and an intraoperative spatial positioning coordinate system; and generating guide information based on the mapping relationship, to guide a puncture needle to perform puncturing on the detection target. An operation time of a puncture operation can be greatly shortened, and puncture efficiency and accuracy can be improved.