Hybrid X-Ray Detector for C-Arm Spectral Imaging
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Solution Overview
Problem
C-arm x-ray systems in interventional radiology lack the advanced imaging capabilities of fixed-gantry CT systems, particularly in terms of spectral and quantitative imaging, due to their energy-integrating detectors which cannot differentiate between iodine and bleeding, limiting the precision of procedures like radiofrequency ablation therapy and differentiation between iodine staining and true bleeding.
Innovation Solution
Integration of both energy-integrating and photon-counting detectors in an x-ray imaging system, allowing simultaneous data acquisition and reconstruction, which enhances imaging capabilities by providing spectral and quantitative information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If energy-integrating detectors are used in C-arm x-ray systems, then the system provides openness and accessibility for interventional procedures, but the system lacks spectral and quantitative imaging capabilities
Solution Approach 1:
The patent combines energy-integrating detectors and photon-counting detectors into a single hybrid detector system. The energy-integrating portion maintains the system's openness and accessibility for interventional procedures, while the photon-counting portion adds spectral and quantitative imaging capabilities. Both detector types process x-ray photons simultaneously but with different measurement approaches.
2Adaptability or versatility
If conventional FPDs are used, then the system provides flexibility for interventional procedures, but the system cannot differentiate between iodine staining and true bleeding
Solution Approach 1:
The hybrid detector system merges energy-integrating and photon-counting detection capabilities to enable differentiation between iodine staining and true bleeding. The photon-counting detector's spectral information allows physicians to distinguish between these two conditions, while the overall system maintains the flexibility needed for interventional procedures.
3Measurement precision
If photon-counting detectors are used exclusively, then spectral and quantitative imaging capabilities are improved, but the system loses the openness and flexibility of C-arm architecture
Solution Approach 1:
The patent merges photon-counting detector capabilities with the C-arm architecture's inherent openness and flexibility. By integrating both detector types in a hybrid system, the patent preserves the C-arm's adaptability for interventional procedures while adding the spectral and quantitative imaging capabilities of photon-counting technology.
4Measurement precision
If dual-detector systems are integrated, then imaging capabilities are enhanced, but the device complexity increases
Solution Approach 1:
The patent integrates energy-integrating and photon-counting detectors into a unified hybrid detector system with shared support structures, electronics, and processing pathways. This merging approach enhances imaging capabilities while managing system complexity through integrated design rather than separate independent systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This multi-detector system improves image resolution, enables better differentiation between iodine and bleeding, and provides superior low-contrast detectability and spatial resolution, enhancing the precision of interventional radiology procedures.
Implementation Method 1
an energy-integrating x-ray detector having an array of x-ray sensing elements that are configured to sense x-rays emitted from the x-ray source and generate energy-integrating x-ray data
Implementation Method 2
a photon-counting detector having another array of x-ray sensing elements configured to determine an interaction between individual x-ray photons from the x-ray source and individual sensing elements of the another array of x-ray sensing elements
Data Source
AI summary
A system and method for detection of x-rays is provided. An x-ray detector system may include an energy-integrating x-ray detector having an array of x-ray sensing elements that are configured to sense x-rays emitted from an x-ray source and generate energy-integrating x-ray data. The system may also include a photon-counting detector having another array of x-ray sensing elements configured to determine an interaction between individual x-ray photons with individual sensing elements of the another array of x-ray sensing elements to generate photon-counting x-ray data. The system may further include electronics configured to receive the energy-integrating x-ray data and the photon-counting x-ray data simultaneously.