EEG Artifact Visualization via Segmented Horizontal Lines
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Solution Overview
Problem
Interpreting EEG data is complex due to the presence of artifacts, which hinders quick and accurate analysis of brain activity, especially in diagnosing conditions like epilepsy.
Innovation Solution
A method and system for visually displaying the amount of artifacts in EEG recordings as a series of horizontal lines, indicating muscle, chewing, vertical eye movement, and lateral eye movement artifacts over time, allowing for easier identification and removal of artifacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If EEG data is displayed in traditional waveform format, then detailed brain activity information is preserved, but artifact identification becomes complex and time-consuming
Solution Approach 1:
The patent segments the complex EEG analysis task by creating separate visual channels for different artifact types (muscle, eye movement, cardiac). Each artifact type is displayed as a distinct horizontal line in the time series, allowing clinicians to quickly identify and differentiate between various artifact sources without analyzing the entire complex waveform simultaneously.
Solution Approach 2:
The patent transforms the traditional two-dimensional waveform display into a multi-dimensional visualization by adding a vertical dimension that represents different artifact types. Each artifact type is assigned a specific vertical position, creating a layered display where the horizontal axis represents time and the vertical axis represents artifact categories, enabling simultaneous monitoring of multiple artifact dimensions.
2Measurement precision
If multiple artifact types are monitored separately, then artifact identification accuracy improves, but display complexity increases
Solution Approach 1:
The patent merges multiple separate artifact monitoring functions into a single integrated time series display. All artifact types (muscle, eye movement, cardiac) are combined into one unified visualization where each artifact type appears as a horizontal line at a different vertical level, allowing simultaneous monitoring of multiple artifact types without creating separate displays for each.
Solution Approach 2:
The patent applies local quality by assigning specific visual characteristics to different artifact types within the unified display. Each artifact type is represented at a distinct vertical position with potentially different visual properties, allowing the display to provide differentiated information about each artifact type while maintaining overall structural simplicity.
Data Source
Figure 1
Figure 1A
Figure 1B~1C
AI summary
A system (20) and method to display in graphical form the amount of artifact present in an EEG record (51) is disclosed herein. Displaying in graphical form (110) the amount of artifact present in an EEG record (51) allows a reviewer of the EEG recording (51) to see how much muscle and eye movement is present in the EEG record (51).