X-Ray Detector Overlay for Small-Field Imaging Positioning
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Solution Overview
Problem
Conventional X-ray imaging devices face difficulty in determining the imaging position when switching from a detector with a large imaging region to one with a small imaging region, as it is challenging to ascertain if the target part of the subject is within the smaller detector's region based solely on positional relationships.
Innovation Solution
The imaging device generates a superimposed image by overlaying the imaging region of the smaller detector on the captured image from the larger detector, allowing for easy visualization of the target part's inclusion in the smaller detector's field, facilitated by a control unit that adjusts the superimposed image in real-time with subject movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a detector with a large imaging region is switched to a detector with a small imaging region to capture images of a subject, then more detailed information about the subject can be obtained, but it becomes difficult to determine whether the imaging target part is included in the small imaging region
Solution Approach 1:
The patent creates a visual copy of the imaging region boundary by superimposing a frame image representing the second detector's imaging region onto the first X-ray image. This visual copy allows operators to see exactly where the smaller detector's field of view will be, making it easy to determine if the target part is included without physical trial-and-error positioning.
2Reliability
If the imaging position is adjusted to include the imaging target part in the small imaging region, then accurate imaging can be achieved, but the process becomes time-consuming and complex
Solution Approach 1:
The patent introduces an intermediary visual aid (the superimposed frame image) that mediates between the operator and the imaging system. This frame image acts as a guide that simplifies the complex positioning task, allowing operators to quickly and accurately adjust the imaging position without dealing with complex calculations or trial-and-error adjustments.
3Adaptability or versatility
If multiple detectors with different imaging regions are used to capture images of a subject, then comprehensive imaging information can be obtained, but the complexity of determining the correct imaging position increases
Solution Approach 1:
The patent uses visual differentiation through the frame image overlay, where the imaging region boundary is displayed as a distinct visual element (frame) that contrasts with the underlying X-ray image. This visual distinction makes it easy to identify the boundaries of the smaller detector's imaging region regardless of which detector is being used, simplifying the switching and positioning process between multiple detectors.
Data Source
AI summary
Provided is an imaging device that makes it possible to easily determine an imaging position when a detection unit having a large imaging region is switched to a detection unit having a small imaging region to capture an image of a subject.This imaging device 100 includes: a detection unit 20a configured to capture a captured image 101 of a subject 200; a detection unit 20b having an imaging region smaller than an imaging region of the detection unit 20a and configured to capture a captured image 102 of the subject 200; and a control unit 90. The control unit 90 performs control for generating a superimposed image 103 in which an imaging region image 104 showing the imaging region of the detection unit 20b is superimposed on the captured image 101 and control for displaying the superimposed image 103 on a display unit 70.