Medical Image Display System with Sequential Same-Position Overlay
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Solution Overview
Problem
Current medical image display systems require physicians to move their line of sight significantly between diagnostic images and reference images, leading to reduced diagnostic accuracy and increased fatigue due to the need for precise positional alignment of subject regions, which is technically challenging to achieve with high accuracy.
Innovation Solution
A medical image display method and system that includes fringe scanning-type or Fourier transform-type imaging, generating X-ray absorption, differential phase, and small-angle scattering images, and displaying these images sequentially on the same position on a display unit, allowing for simultaneous comparison without the need for frequent line-of-sight movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If reference images and diagnostic images are displayed at different positions, then physicians can compare images, but line of sight movement increases causing fatigue and reduced diagnostic accuracy
Solution Approach 1:
The patent merges reference images and diagnostic images into the same display region, allowing physicians to compare images without moving their line of sight. The control unit displays both images overlaid or adjacent within the same display area, eliminating the need to switch between separate display positions and reducing visual fatigue.
2Loss of time
If multiple images are displayed simultaneously at the same position, then line of sight movement is reduced, but precise positional alignment of subject regions becomes technically challenging
Solution Approach 1:
The patent replaces mechanical alignment methods with image processing techniques. The control unit automatically aligns subject regions in reference images and diagnostic images using image processing algorithms, eliminating the need for precise mechanical positioning and achieving accurate alignment through digital manipulation.
Solution Approach 2:
The patent changes the parameter of image display from fixed positional display to dynamically adjusted display. The control unit adjusts display parameters such as image position, size, and orientation based on detected subject region positions, enabling flexible alignment that adapts to different imaging scenarios without requiring precise mechanical setup.
3Measurement precision
If fringe scanning method is used to create reconstructed images, then spatial resolution is improved, but imaging time increases and mechanical errors may occur
Solution Approach 1:
The patent applies partial action by selectively using the fringe scanning method only when high spatial resolution is required, while offering the Fourier transform method as an alternative for routine imaging where ultra-high resolution is not critical. This allows physicians to choose the appropriate method based on diagnostic needs, balancing resolution requirements with imaging time constraints.
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
This approach enhances diagnostic accuracy by reducing the need for frequent line-of-sight movement and fatigue, enabling more precise comparison and interpretation of medical images by displaying multiple image types simultaneously on the same position.
Implementation Method 1
an X-ray source that irradiates an X-ray, a first grating and a second grating... an X-ray detector in which conversion elements generating electric signals in response to the irradiated X-ray are arranged two-dimensionally
Implementation Method 2
The Talbot effect refers to a phenomenon that, when coherent light transmits through a first grating in which slits are provided in a constant cycle, a grating image of the light is formed in the constant cycle in a traveling direction thereof. This grating image is called a self-image
Implementation Method 3
The Talbot interferometer arranges a second grating at a position where the self-image is formed, and measures interference fringes generated by slightly shifting the second grating
Implementation Method 4
a Talbot-Lau interferometer is also proposed, which places a multi-slit between an X-ray source and the first grating, and increases an exposure dose of the X-ray
Data Source
AI summary
The present invention provides a method for displaying medical images and a medical image display system that do not require a medical practitioner to move his/her line of sight at the time of comparing/interpreting images and that can improve accuracy in diagnosis. According to the medical image display system of the present invention: an X-ray imaging device captures an image of a subject according to a first imaging mode by a fringe-scanning imaging device or a second imaging mode by a Fourier transform imaging device; a controller creates at least two images from among an X-ray absorption image, a differential phase image, and a small-angle scattering image on the basis of the captured moir image; and said at least two images that have been created are displayed in turn in the same position on a display section.