Medical Data Display Range Adaptation
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Solution Overview
Problem
Traditional methods for displaying medical or physiologic data often obscure significant changes due to fixed-range displays, which can lead to inaccurate interpretation, especially when dealing with noisy data or varying anatomical conditions across patients.
Innovation Solution
A system that processes medical data to generate a graphical representation in a two-dimensional or higher-dimensional coordinate space, determining optimal lower and upper bounds using signal statistics and a correction factor, and displaying tickmarks to enhance visual perception and interpretation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed-range display is used to show medical data, then the display range is stable and easy to implement, but significant changes in data can be obscured and visual interpretation becomes difficult
Solution Approach 1:
The patent implements dynamic range adjustment by automatically adapting the display range based on the statistical characteristics of the medical data being displayed. The system calculates optimal lower and upper bounds dynamically, allowing the display to adapt to different data scenarios while maintaining stability through systematic calculation methods.
Solution Approach 2:
The system changes the display parameter (range bounds) based on the statistical parameters of the medical data. By calculating optimal bounds using signal statistics and correction factors, the display range is adjusted to appropriately show significant data changes without being obscured by fixed limitations.
2Measurement precision
If an adjustable range display is used to show more data variation, then data interpretation accuracy improves, but noise content is exaggerated and visual identification of signal change becomes difficult
Solution Approach 1:
The patent adjusts the display range parameters based on the statistical characteristics of the signal, including noise levels. By using correction factors derived from signal statistics, the system optimizes the display range to show meaningful variations while minimizing the visual impact of noise, thereby improving signal-to-noise perception.
3Measurement precision
If the aspect ratio is adjusted to optimize line segment orientation for visual perception, then graphical perception improves, but the method is complex and cannot be applied when aspect ratio must be fixed
Solution Approach 1:
Instead of adjusting the aspect ratio to optimize line segment orientation as proposed by Cleveland's banking method, this patent inverts the approach by fixing the aspect ratio and instead adjusting the data range bounds. This achieves similar visual optimization goals through a simpler parameter adjustment that is compatible with fixed aspect ratio requirements in medical reporting systems.
4Ease of manufacture
If a fixed data range is used for display, then the display implementation is simple, but the system cannot adapt to inter-patient variation due to different anatomical or physiologic conditions
Solution Approach 1:
The patent implements adaptive display ranges by calculating optimal bounds based on the statistical characteristics of each patient's data. This allows the system to automatically adapt to inter-patient variations in anatomical and physiologic conditions while maintaining a consistent and simple implementation approach through systematic parameter calculation.
Data Source
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AI summary
Systems and methods for displaying medical or physiologic data are disclosed. The system can receive medical data and can generate a graphical representation of the medical data in a two-dimensional or a higher-dimensional coordinate space. The graphical representation can include line segments indicating temporal variation of the medical data. The system can determine a desired range, including lower and upper bounds, for displaying the medical data using signal statistics and a correction factor, and specified number of tickmarks between the desired LB and UB. A display unit can display the graphical representation of the medical data within the desired lower and upper bounds.