Radiographic Position Matching for Faster Repeat X-Ray Imaging
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Solution Overview
Problem
Conventional radiographic devices induce unnecessary radiation exposure during repetitive imaging due to automatic brightness control adjustments, particularly when repositioning the radiation source and detector for re-imaging the same position.
Innovation Solution
A radiographic device that includes a position information detector, storage unit, and determination controller to associate reference position information with radiation output information, allowing for rapid adjustment of radiation parameters when re-imaging at the same position, thereby reducing exposure time and dose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If automatic brightness exposure control is performed during radiography, then image quality is improved, but radiation exposure time increases
Solution Approach 1:
The system performs preliminary actions by detecting position information and determining whether the current position matches a stored reference position before executing the brightness control algorithm. When a match is found, the system skips the time-consuming automatic brightness adjustment and directly uses pre-stored imaging parameters, thereby reducing radiation exposure time while maintaining image quality.
Solution Approach 2:
The system uses copying by storing reference position information and corresponding imaging parameters from previous radiography sessions. When the same position is detected, the system copies the previously successful imaging parameters instead of重新 performing the full automatic brightness control process, significantly reducing exposure time while preserving image quality.
2Measurement precision
If position information is stored and used for repositioning, then imaging accuracy is improved, but device complexity increases
Solution Approach 1:
The system implements self-service by automatically detecting position information, comparing it with stored reference positions, and selecting appropriate imaging parameters without requiring manual intervention. The determination controller autonomously manages the entire process of position verification and parameter selection, improving imaging accuracy while avoiding the complexity of manual repositioning procedures.
Solution Approach 2:
The system replaces mechanical repositioning operations with electronic/digital methods. Instead of relying on physical alignment and manual adjustment, the system uses position information detection, digital storage, and automated parameter selection to achieve precise repositioning, thereby improving imaging accuracy while reducing mechanical complexity.
3Reliability
If repetitive imaging is performed to confirm affected parts, then diagnostic reliability is improved, but radiation exposure increases
Solution Approach 1:
The system uses copying by retrieving and reusing imaging parameters from the stored reference position when the same anatomical location needs to be imaged again. This allows repetitive imaging for diagnostic confirmation while minimizing radiation exposure by avoiding redundant parameter adjustments and reducing total exposure time.
Solution Approach 2:
The system performs preliminary action by pre-storing optimal imaging parameters at various positions. When repetitive imaging is needed, the system quickly retrieves the pre-stored parameters for the same position, enabling rapid re-imaging with minimal additional radiation exposure while maintaining diagnostic reliability.
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 solution significantly reduces radiation exposure time to less than 100 msec by enabling quick automatic brightness adjustment, enhancing imaging efficiency and safety for patients and users.
Implementation Method 1
a radiation irradiator (110) configured to radiate radiation
Implementation Method 2
an image acquisition unit (120) configured to acquire an image by receiving the radiation which is radiated from the radiation irradiator (110) and passes through an irradiation target object
Data Source
AI summary
A radiographic device includes a radiation irradiator; an image acquisition unit; a support member; a driving unit driving the support member; a position information detector which detects location information indicating the location of one or more of the radiation irradiator and the image acquisition unit; a storage unit which links reference location information, indicating the location of one or more of the radiation irradiator and the image acquisition unit, with corresponding radiation output information of the radiation irradiator, and stores same as positioning information; and a determination controller which, if the location information detected by the position information detector matches with the reference location information of the positioning information, controls the radiation irradiator so that the radiation irradiator emits radiation according to the radiation output information of the corresponding positioning information.