Radiation Imaging Apparatus Fluoroscopy End Detection
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Solution Overview
Problem
Existing radiation imaging apparatuses struggle to adapt to continuous fluoroscopy operations without synchronous communication, requiring complex timing synchronization and increased power consumption.
Innovation Solution
A radiation imaging apparatus equipped with a radiation detection unit and a determination unit that can determine the end of fluoroscopy by monitoring the reduction amount of radiation irradiation, allowing for independent operation without synchronous communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If synchronous communication is performed between radiation generation apparatus and radiation imaging apparatus, then timing synchronization is improved, but device complexity and ease of operation deteriorate due to cable connection requirements
Solution Approach 1:
The patent extracts the timing synchronization function from the communication cable connection and implements it independently within the radiation imaging apparatus using internal timing control circuits, eliminating the need for external synchronous communication cables while maintaining accurate timing
2Measurement precision
If standby drive is performed before photographing to detect radiation irradiation, then detection capability is improved, but power consumption increases and adaptability to continuous fluoroscopy deteriorates
Solution Approach 1:
The patent implements periodic sampling of radiation detection signals at optimized intervals rather than continuous monitoring, allowing the system to maintain detection capability while reducing power consumption during standby periods before photographing operations
Solution Approach 2:
The patent performs preliminary calibration and threshold setting of radiation detection parameters before actual photographing operations, enabling the system to quickly transition to active detection mode without requiring prolonged standby drive that consumes excessive power
3Productivity
If determination of irradiation stop is not implemented, then device complexity is reduced, but productivity and adaptability to continuous fluoroscopy deteriorate
Solution Approach 1:
The patent implements a determination circuit that automatically detects irradiation stop conditions by monitoring radiation signal levels and comparing them against predetermined thresholds, enabling the system to self-determine when to transition between photographing and standby modes without external control, thereby improving continuous fluoroscopy capability
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 reliable determination of the end of fluoroscopy, reducing power consumption and improving image quality by allowing for prompt transition to standby mode for the next imaging operation.
Implementation Method 1
a radiation detection unit which includes a plurality of pixels for radiation detection arranged therein and which is to be used for generation of image data based on radiation applied to the radiation detection unit
Data Source
AI summary
To allow a radiation imaging apparatus to perform imaging processing of determining the end of fluoroscopy without performing synchronous communication to and from a radiation generation apparatus, the radiation imaging apparatus includes: a radiation detection unit which includes a plurality of pixels for radiation detection arranged therein and which is to be used for generation of image data based on radiation applied to the radiation detection unit; and a determination unit configured to determine that irradiation of the radiation has stopped when a reduction amount of an irradiation amount of the radiation obtained from a detection pixel included in the plurality of pixels is larger than a reduction threshold value.