Radiography Control for Intermittent Imaging Under Dose Limits
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Solution Overview
Problem
Conventional radiographic imaging systems face limitations in capturing radiographic images outside the imaging room due to dose restrictions, preventing long-duration fluoroscopic imaging, which necessitates subject movement and increases burden.
Innovation Solution
A radiography control apparatus and system that enables intermittent imaging mode, allowing multiple captures of dynamic images within one imaging period, with variable irradiation and non-irradiation periods controlled by a user-operated exposure switch, to manage exposure dose.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If fluoroscopic imaging is performed for a relatively long time outside the imaging room, then the imaging duration is extended, but the exposure dose of the subject increases excessively
Solution Approach 1:
The system implements intermittent imaging mode where radiation irradiation is performed periodically rather than continuously. The control apparatus alternates between irradiation periods and non-irradiation periods within a single imaging session, allowing the imaging duration to be extended while controlling the cumulative exposure dose by interrupting radiation delivery at regular intervals
2Object-affected harmful factors
If the total dose is limited in imaging outside the imaging room, then the exposure dose is controlled, but fluoroscopic imaging cannot be performed
Solution Approach 1:
The system dynamically adjusts the imaging mode by allowing switching between different irradiation and non-irradiation period configurations. The control apparatus enables flexible adaptation of the intermittent imaging parameters (irradiation time, pause time, number of cycles) based on clinical needs, maintaining dose control while providing versatile imaging capabilities
3Productivity
If multiple captures of dynamic images are performed during one imaging period, then the imaging coverage is improved, but the operation complexity increases
Solution Approach 1:
The control apparatus automatically manages the intermittent imaging sequence without requiring manual intervention for each capture cycle. The system self-regulates the timing of irradiation and non-irradiation periods, automatically performs multiple dynamic image captures according to the set parameters, and manages the imaging sequence autonomously, thereby improving imaging coverage while keeping operations simple
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
Facilitates easy-to-use radiographic imaging with reduced exposure dose, enabling flexible imaging outside the imaging room without subject movement, improving imaging freedom and efficiency.
Implementation Method 1
a radiographic imager capable of capturing a radiographic image by irradiation with radiation
Data Source
AI summary
The radiography control apparatus includes a hardware processor that controls a radiographic imager in an intermittent imaging mode in which a plurality of times of capturing of a dynamic image by the radiographic imager are allowed during one imaging period from an imaging start to an imaging end. The hardware processor determines the imaging end in the one imaging period based on a predetermined condition.