Radiation Phase Contrast Imaging Device Real-Time Position Adjustment
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Solution Overview
Problem
Conventional radiation phase contrast imaging devices require multiple iterations to ensure that the portion to be imaged is within the imaging frame, leading to inefficiencies in acquiring the desired reconstructed image, as users must repeatedly adjust the subject position and capture X-ray images until the desired image is obtained.
Innovation Solution
A radiation phase contrast imaging device that includes an X-ray source, detector, gratings, a moving mechanism, image processor, and controller, allowing for the display of X-ray images before reconstruction and the reconstructed image, enabling users to adjust the subject position more efficiently by displaying the X-ray image before reconstruction in real-time and reducing the need for multiple recaptures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional radiation phase contrast imaging devices perform multiple iterations of image capture and reconstruction to ensure the portion to be imaged is within the imaging frame, then the accuracy of imaging position is improved, but the time required to acquire the desired reconstructed image increases
Solution Approach 1:
The system performs preliminary action by displaying the X-ray image before reconstruction in real-time, allowing users to adjust the subject position before the actual reconstruction process. This preliminary visualization enables users to ensure the portion to be imaged is within the imaging frame beforehand, avoiding the need for multiple iterative recaptures and reducing overall acquisition time while maintaining imaging position accuracy
Solution Approach 2:
The system implements feedback by providing real-time display of the X-ray image before reconstruction, creating a feedback loop that allows users to immediately see whether the portion to be imaged is within the imaging frame. This immediate feedback enables rapid position adjustment without waiting for the full reconstruction process, thereby reducing iteration cycles and acquisition time while ensuring accurate imaging position
2Reliability
If users repeatedly adjust subject position and recapture X-ray images to ensure the desired portion is within the imaging frame, then the completeness of the imaged portion is improved, but the productivity of the imaging process decreases
Solution Approach 1:
The system allows users to perform preliminary adjustment of the subject position by displaying the X-ray image before reconstruction in real-time. Users can verify the completeness of the imaged portion beforehand and make necessary adjustments before the formal imaging process, ensuring imaging completeness while avoiding repeated recaptures that would reduce productivity
Solution Approach 2:
The real-time display of the X-ray image before reconstruction provides immediate feedback to users about whether the desired portion is completely captured within the imaging frame. This feedback mechanism enables users to make single-pass adjustments rather than repeated iterative adjustments, thereby ensuring imaging completeness while significantly improving the productivity and efficiency of the imaging process
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 approach allows for quicker grasping of the portion to be imaged and faster acquisition of the desired reconstructed image by enabling real-time adjustments based on the displayed X-ray image before reconstruction, reducing the time required to obtain the desired image.
Implementation Method 1
an X-ray source, an X-ray detector configured to detect radiated X-rays
Implementation Method 2
a phase grating and an absorption grating... a phase contrast image is generated by fringe scanning imaging in which either the phase grating or the absorption grating is translated
Implementation Method 3
a moire single shot technique of capturing images by rotating the phase grating or the absorption grating about an X-ray optical axis by a small angle to form a moire fringe
Data Source
AI summary
A radiation phase contrast imaging device includes an X-ray source, an X-ray detector configured to detect radiated X-rays, a plurality of gratings, an image processor configured to generate a reconstructed image from an X-ray image acquired from the X-ray detector, a display, and a controller configured or programmed to perform control to display, on the display, the X-ray image before reconstruction and the reconstructed image generated by the image processor.