Dual-Camera CT Scanning for Precise Low-Dose Coverage
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Solution Overview
Problem
Traditional CT scanning methods face inefficiencies and inaccuracies due to manual positioning and locating of scanning regions, leading to excessive radiation exposure and incomplete coverage of targeted regions, particularly in imaging fine structures like the temporal bone.
Innovation Solution
A CT scanning method and system utilizing dual-camera imaging to automatically determine and adjust scanning coordinates, combining full-view and detailed-view scans, with neural networks for precise positioning and optimized exposure parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual positioning and locating of scanning regions is used, then operation simplicity is maintained, but operation efficiency deteriorates and measurement precision worsens
Solution Approach 1:
The system performs automatic positioning and scanning region determination without manual intervention. The computer automatically calculates scanning parameters, determines scanning regions, and controls the scanning table movement based on patient data and pre-set protocols, enabling the system to serve itself in the positioning task.
Solution Approach 2:
The patent replaces manual mechanical positioning operations with an automated computer-controlled system. The computer calculates coordinates and controls motors to move the scanning table automatically, substituting the mechanical manual adjustment process with an automated electromechanical system that improves efficiency and precision.
2Reliability
If manual positioning with larger scanning region is used, then complete coverage is ensured, but radiation dose increases causing harmful effects
Solution Approach 1:
The system applies different scanning strategies to different regions: full-view scanning for general coverage areas and detailed-view scanning for specific regions of interest. This localized approach ensures complete coverage of necessary areas while minimizing radiation exposure by avoiding unnecessary scanning in non-critical regions.
Solution Approach 2:
The computer dynamically adjusts scanning parameters including scanning region boundaries, exposure parameters, and scanning angles based on patient-specific anatomy and diagnostic requirements. This parameter optimization ensures adequate coverage while minimizing radiation dose through precise control of scanning boundaries and exposure settings.
3Object-affected harmful factors
If manual positioning with smaller scanning region is used, then radiation dose is reduced, but coverage completeness deteriorates requiring re-scanning
Solution Approach 1:
The system performs preliminary full-view scanning to obtain comprehensive anatomical information before determining the optimal detailed scanning region. This preliminary action ensures that the subsequent detailed scan is precisely targeted to cover all necessary areas in one pass, eliminating the need for re-scanning while maintaining minimal radiation exposure.
Solution Approach 2:
The system uses feedback from full-view scanning images to automatically determine the optimal scanning region and parameters for detailed scanning. The computer analyzes the preliminary images to identify regions of interest and adjusts scanning parameters accordingly, ensuring complete coverage in the detailed scan without requiring re-scanning.
4Device complexity
If manual positioning is used, then device complexity is low, but measurement precision and positioning accuracy worsen
Solution Approach 1:
The patent replaces manual positioning operations with an automated computer-controlled positioning system that calculates precise coordinates and controls motor-driven scanning table movement. This substitution of manual mechanical adjustment with automated computer control significantly improves positioning accuracy while maintaining manageable system complexity through software-based control.
Data Source
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AI summary
Provided are a CT scanning method and system, an electronic device, and a computer-readable storage medium. The method includes: determining a first coordinate of a mark point of a part to be imaged in a dual-camera coordinate system; converting the first coordinate into a second coordinate of the mark point in a CT coordinate system according to coordinate system transformation parameters; generating first locating information according to the second coordinate to drive a scanning table to move to a first location designated by the first locating information; obtaining projection images of the part to be scanned; determining second locating information and scanning information of the part to be scanned according to the projection images; and driving the scanning table to move to a second location designated by the second locating information according to the second locating information and performing CT scanning according to the scanning information.