X-Ray Imaging AEC Marker Control for Partial Exposure Regions
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Solution Overview
Problem
Existing medical imaging apparatuses, particularly X-ray apparatuses, face challenges in preventing excessive X-ray irradiation, which can lead to health risks and inefficiencies in image acquisition.
Innovation Solution
The apparatus and method incorporate features such as automatic exposure control (AEC) markers, collimation, and user-controlled indicators and guidelines to partition the X-ray field into regions, allowing for precise adjustment of X-ray exposure and irradiation areas, thereby reducing unnecessary radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the X-ray field is expanded to cover a larger area, then the coverage of the examination is improved, but the risk of excessive X-ray irradiation increases
Solution Approach 1:
The patent divides the X-ray irradiation field into multiple selectable regions (e.g., small, medium, large fields) that can be individually chosen based on the specific examination needs. This segmentation allows the system to provide comprehensive coverage when necessary while limiting the irradiation area to only what is required, thereby preventing excessive exposure.
Solution Approach 2:
The patent implements dynamic adjustment of the X-ray field size and position through movable collimators and adjustable positioning mechanisms. The system can adaptively change the irradiation area during the examination process, expanding it when broader coverage is needed and contracting it to minimize exposure when focused examination is sufficient.
2Measurement precision
If the number of partial photographing operations is increased, then the precision of image acquisition is improved, but the total X-ray exposure time increases
Solution Approach 1:
The patent employs preliminary positioning and planning steps where the examination area is pre-mapped and divided into optimal segments before actual X-ray acquisition begins. This preliminary action allows the system to determine the minimum necessary number of partial photographing operations, avoiding unnecessary exposures while maintaining image precision.
Solution Approach 2:
The patent implements continuous image acquisition within each partial photographing operation by optimizing exposure parameters and using rapid sequential imaging techniques. This continuity reduces the total time required for multiple partial operations by minimizing idle time between exposures and ensuring each X-ray pulse contributes maximally to the final image quality.
3Productivity
If automatic exposure control is implemented, then the efficiency of image acquisition is improved, but the complexity of the device increases
Solution Approach 1:
The patent implements automatic exposure control systems that self-regulate X-ray parameters based on real-time detection of tissue density and thickness. The system automatically adjusts exposure time, tube current, and voltage without requiring manual intervention, thereby improving acquisition efficiency while the modular design keeps the added complexity manageable through standardized sensors and control algorithms.
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 enables controlled X-ray irradiation, minimizing excessive exposure and improving the quality and efficiency of medical imaging by optimizing the use of X-rays.
Implementation Method 1
An X-ray apparatus may acquire X-ray images of an object by transmitting X-rays emitted from an X-ray source through an object and detecting a difference in intensities of the transmitted X-rays via an X-ray detector
Data Source
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AI summary
A medical imaging apparatus and a method of operating the same are provided. The medical imaging apparatus comprises: a display device; an input device configured to receive a user input; and a controller configured to: obtain an image by photographing an object; control the display device to display, on the image, a plurality of regions that are target areas for partial photographing operations; select a region from among the plurality of regions based on a first user input received by the input device; control the display device to display, within the selected region, a plurality of Automatic Exposure Control (AEC) markers respectively indicating positions of a plurality of AEC chambers included in an X-ray detector; and set an on/off state of each of the plurality of AEC markers based on a second user input received by the input device.