Real-time X-ray Dosage Feedback for C-Arch Geometry Optimization
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Solution Overview
Problem
Medical practitioners face challenges in balancing X-ray dosage and image quality during interventional X-ray imaging procedures, as varying imaging geometry positions significantly impact X-ray dosage, leading to potential patient exposure risks and suboptimal image acquisition.
Innovation Solution
An apparatus that includes an input unit, memory unit, and output unit to assist operators by providing real-time indications of X-ray dosage changes based on imaging geometry positions, using a functional relationship between X-ray attenuation levels and dosage, allowing for intuitive visualization and feedback to optimize imaging geometry for reduced patient exposure while maintaining image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the operator uses higher X-ray dosage to maintain image quality, then the image quality is improved, but the patient exposure risk increases
Solution Approach 1:
The system provides real-time feedback to the operator about the X-ray dosage being delivered and the resulting image quality metrics, enabling the operator to adjust parameters dynamically to achieve optimal image quality at the lowest necessary dosage
Solution Approach 2:
The system automatically adjusts multiple imaging parameters (kVp, mAs, pulse width, collimation) based on real-time analysis of the imaging situation, transforming the manual trial-and-error process into an automated parameter optimization system that maintains image quality while minimizing dosage
2Manufacturing precision
If the operator varies imaging geometry positions to optimize image quality, then the image quality is improved, but the X-ray dosage increases significantly
Solution Approach 1:
The system continuously monitors imaging geometry position and provides feedback about its impact on both image quality and dosage, enabling the operator to make informed decisions about geometry adjustments
Solution Approach 2:
The system analyzes the full range of possible geometry positions and recommends only the partial adjustment needed to achieve optimal image quality without excessive dosage increase, avoiding unnecessary geometry changes
3Adaptability or versatility
If the operator has manual control freedom to adjust X-ray parameters, then the adaptability to medical needs is improved, but the operational burden increases
Solution Approach 1:
The system performs automatic analysis and parameter optimization without requiring manual intervention from the operator, while still allowing full manual control when needed, effectively making the system serve itself in routine optimization tasks
Solution Approach 2:
The system provides multiple functions including automatic parameter optimization, real-time dosage monitoring, image quality assessment, and geometry optimization guidance, consolidating multiple tools into a single integrated system
Data Source
AI summary
An apparatus aids operation of an interventional x-ray imager during image acquisition, where the X-ray imager is configured to vary X-ray dosages depending on differences in X-ray attenuation levels across an object of interest to be imaged. The X-ray imager is further configured to assume any one of a plurality of imaging geometry positions when acquiring an image. An indication, visual, acoustic or haptic, to the operator of the X-ray imager is provided on the incurred change in X-ray dosage when changing from a current projection view to an updated projection view, while a given constant image quality is maintained throughout the different views.