X-ray Imaging Apparatus Dose Visualization Map
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Solution Overview
Problem
Conventional X-ray CT apparatuses face challenges in visually representing the change in exposed dose during complex imaging protocols like tube current modulation and dual energy scans, making it difficult to ensure that the radiation exposure remains within safe limits.
Innovation Solution
An X-ray imaging apparatus that calculates and displays the exposed dose on a two-dimensional map represented by tube voltage and tube current, allowing for intuitive visualization of radiation exposure levels and alerting operators to potential overexposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If tube current or tube voltage is increased to improve image quality, then image quality is improved, but exposed dose increases
Solution Approach 1:
The patent implements dynamic modulation of tube current and tube voltage during the imaging process. The tube current is modulated according to the attenuation characteristics of different body regions, allowing the imaging system to adapt exposure parameters in real-time rather than using fixed high values throughout the scan.
Solution Approach 2:
The system changes imaging parameters (tube current and tube voltage) based on the specific imaging requirements and patient anatomy. By adjusting these parameters dynamically, the system optimizes image quality for each region while minimizing overall radiation exposure.
2Reliability
If numerical display of exposed dose is used to meet IEC standards, then compliance is achieved, but visualization of complex imaging protocol effects is difficult
Solution Approach 1:
The patent transforms the one-dimensional numerical exposed dose information into a two-dimensional visual map. This map displays tube voltage on one axis and tube current on the other axis, with the exposed dose represented as a visual overlay, enabling operators to see the relationship between imaging parameters and radiation exposure simultaneously.
Solution Approach 2:
The system creates a visual copy or representation of the exposed dose information that mirrors the imaging parameter settings. This visual map serves as a graphical counterpart to the numerical data, making the information more accessible and easier to interpret at a glance.
Data Source
AI summary
An X-ray imaging apparatus including: an imaging unit which includes an X-ray tube that emits an X-ray to a subject and an X-ray detector that is so disposed as to face the X-ray tube; an input unit which inputs a plurality of imaging conditions including a tube current and a tube voltage of the X-ray tube, and sets an imaging protocol of the imaging unit; and an image creation unit which calculates an exposed dose when at least the tube voltage or the tube current is varied, and creates an index image that is made by overlapping an image showing the exposed dose on a two-dimensional map that is represented by the tube voltage and the tube current.