Radiation Imaging System Timing Control via Graphic Interface
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Solution Overview
Problem
Radiation imaging systems face challenges in easily determining and controlling the sequence of timings for performing digital subtraction angiography (DSA) procedures, which affects the reliability of images generated by the system.
Innovation Solution
The system displays graphics representing key timings along a time axis, allowing for dynamic control of these timings to ensure that the contrast agent injection timing occurs after the mask image is stored, thereby ensuring accurate image subtraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual timing control is used for DSA imaging, then flexibility in adjusting timing is improved, but the complexity of operation increases and timing determination becomes difficult
Solution Approach 1:
The system automatically determines and sets the timing parameters for mask image acquisition and contrast agent injection based on pre-stored timing data. The controller reads the timing information from storage and automatically configures the imaging sequence, eliminating the need for manual timing adjustments while maintaining flexibility through programmable timing profiles.
Solution Approach 2:
Timing parameters for the imaging sequence are predetermined and stored in advance in the storage unit. The system prepares timing profiles before the actual imaging procedure, allowing rapid selection and automatic application of appropriate timing sequences without requiring manual configuration during the procedure.
2Measurement precision
If timing parameters are manually input, then precision in timing control is improved, but the time required for setup increases
Solution Approach 1:
The system uses pre-stored timing profiles that can be copied and applied to different imaging procedures. Instead of manually inputting timing parameters each time, the operator can select from predefined timing templates that are automatically applied, ensuring consistent precision while dramatically reducing setup time.
Solution Approach 2:
Timing parameters are calculated and stored in advance based on optimal imaging protocols. The system performs the time-consuming timing optimization work beforehand, allowing rapid deployment of precisely tuned timing sequences during actual procedures without requiring manual adjustment or input.
Data Source
AI summary
In a radiation imaging system performing a difference process using a stored mask image based on a radiation image obtained before a contrast agent is injected and a radiation image obtained after the contrast agent is injected, a controller displays a first graphic representing a first timing when irradiation of a radial ray is started, a second graphic representing a second timing when the mask image is stored, and a third graphic representing a third timing when the contrast agent is injected in this order along a time axis and controls the second and third timings by the second and third graphics. The controller moves, when one of the second and third graphics is moved along the time axis, the other of the second and third graphics such that an interval between the first and third graphics becomes larger than an interval between the first and second graphics.