Photon-Counting Detector Reset Cycles for Uniform Medical Imaging
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Solution Overview
Problem
Photon counting detectors in medical imaging suffer from non-uniform counting responses due to changes in physical characteristics and charge response under long-term irradiation, affecting imaging quality.
Innovation Solution
A medical imaging method and device that control a ray generator to emit periodic imaging signals with adjustable cycles, accompanied by reset signals to reset the ray detector, and adjust emission and reset cycles based on radiation intensity to maintain detector stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If photon counting detector operates under long-term irradiation, then imaging capability is maintained, but physical characteristics of crystal and charge response characteristics change causing non-uniform counting response
Solution Approach 1:
The patent implements periodic resetting of the photon counting detector during operation. A control unit periodically generates reset signals to the detector, dividing continuous operation into periodic cycles with resetting phases. This periodic intervention prevents cumulative degradation of counting response uniformity while maintaining continuous imaging capability, directly resolving the contradiction between long-term operation and response uniformity.
2Productivity
If continuous imaging is performed, then productivity is improved, but detector generates non-uniform counting response affecting imaging quality
Solution Approach 1:
The control unit implements periodic resetting during continuous imaging operations. By strategically timing reset operations within the imaging sequence, the system maintains continuous productivity while periodically restoring detector uniformity. The reset timing is optimized to minimize impact on imaging throughput while ensuring quality standards are met.
Solution Approach 2:
The system incorporates monitoring of detector response characteristics and uses this feedback to determine when resetting is needed. The control unit adjusts reset timing based on actual detector performance, ensuring imaging quality is maintained while optimizing productivity by avoiding unnecessary resets.
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
The method and device improve imaging quality by restoring the ray detector to its initial state, reducing non-uniform responses, and enhancing the efficiency and stability of medical imaging.
Implementation Method 1
Photon counting detectors have led human X-ray detection technology into a new era. Photon counting imaging can directly obtain energy levels of photons and the corresponding number of photons
Data Source
AI summary
A medical imaging method is disclosed. The medical imaging method includes: controlling, based on an emission cycle, a ray generator to emit a periodic imaging signal; emitting, based on a reset cycle, a reset signal for resetting, when the ray generator stops emitting the periodic imaging signal, a ray detector, controlling the reset ray detector to receive the periodic imaging signal; and performing, based on the received periodic imaging signal, image reconstruction to generate a medical image. And a medical imaging device and an electronic apparatus are also disclosed.