Radiographic Image Detector Positioning Aid System
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Solution Overview
Problem
In radiography, efficiently positioning a radiation source and radiographic image detector for each patient is time-consuming, especially for first-time patients, as existing methods require manual adjustment and lack efficient data retrieval for precise positioning.
Innovation Solution
A radiographic image detection apparatus with a standard position database, an actual-past-radiography position database, and an aid-information output means that provides position adjustment information based on stored data, allowing for quick and accurate positioning of the radiation source and radiographic image detector using aid information generated from past radiography data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjustment of radiation source and radiographic image detector positions is performed for each patient, then positioning accuracy can be achieved, but the time required for setup increases significantly
Solution Approach 1:
The system performs preliminary actions by storing the positions of the radiation source and radiographic image detector from past radiography sessions in a database. When a patient undergoes periodic radiography, the system automatically retrieves these stored position data and pre-positions the equipment accordingly, eliminating the need for manual adjustment and significantly reducing setup time while maintaining positioning accuracy.
2Productivity
If standard positions are used for all patients, then setup time is reduced, but positioning accuracy for individual patients deteriorates
Solution Approach 1:
The system applies local quality by differentiating between first-time patients and patients undergoing periodic radiography. For periodic radiography, it retrieves and applies patient-specific position data from the database, ensuring customized positioning accuracy for each individual patient while maintaining high productivity through automated retrieval and positioning processes.
3Measurement precision
If detailed position data is stored and retrieved for each patient, then positioning accuracy improves, but system complexity increases
Solution Approach 1:
The system uses copying by creating a digital replica of the radiation source and radiographic image detector positions from past radiography sessions and storing them in a database. This positional information is then retrieved and applied to reproduce the same geometric configuration for periodic radiography, achieving accurate positioning through data copying rather than complex real-time measurements.
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
Enables rapid and efficient radiography by providing operators with precise positioning data, reducing the time required for setup and allowing for consistent imaging angles, even for first-time patients, by utilizing stored data on past radiography positions and subject characteristics.
Implementation Method 1
a radiographic image detector that detects, as a radiographic image, the radiation that has been output from the radiation source to the subject and that has passed through the subject
Data Source
AI summary
An actual-past-radiography position database stores, as actual-past-radiography positions, the position of a radiographic image detector and the position of a radiation source when radiography was actually performed, associating the position of the radiographic image detector and the position of the radiation source with information about a subject. When the radiation source and the radiographic image detector are positioned to perform radiography, position adjustment amounts for adjusting the positions of the radiation source and the radiographic image detector from standard positions stored in the standard position database are output, as aid information. The aid information is output based on the actual-past-radiography positions that are stored in the actual-past-radiography position database and that are associated with the information about the subject.