Methods for automatic generation of EEG montages
Inventors
Dearing, Wayne • Schulz, Michael • Hull, Alison • Hatley, Wes
Assignees
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Publication Number
US-11529107-B2
Publication Date
2022-12-20
Expiration Date
Abstract
Computer-implemented methods of enabling an on-the-fly generation of at least one user-defined montage from EEG electrodes positioned in a patient's brain, on the patient's brain and/or on the patient's scalp. The methods includes generating a graphical interface to display a view of the patient's brain and/or scalp overlaid with the EEG electrodes, each of which is uniquely identified with reference to its position in the patient's brain, on the patient's brain and/or on the patient's scalp, displaying a tool within the graphical interface for selecting at least one electrode from the displayed EEG electrodes, indicating a reference electrode corresponding to the selected electrode, accessing EEG signals corresponding to the electrode and the reference electrode, and generating another graphical interface to display an EEG trace indicative of a comparison of EEG signals of the electrode and the reference electrode.
Core Innovation
The invention generates at least one user-defined montage from a plurality of EEG electrodes positioned in a patient's brain, on the patient's brain, and/or on the patient's scalp. It overlays at least one graphical view of the patient's brain and/or scalp with identifications corresponding to the EEG electrodes, and each identification uniquely references a position of each EEG electrode relative to the patient's brain and/or scalp.
A tool within the graphical interface is displayed and manipulated to select identifications corresponding to electrodes. The user is prompted to indicate at least one reference identification or reference electrode corresponding to the selected electrode(s), including use of at least two drawing loops to select electrodes for generating a first montage and a second montage, and the system automatically designates the other electrode(s) after the user identifies at least one active electrode and/or reference electrode enclosed by a drawing loop.
The invention acquires EEG signals associated with the EEG electrodes corresponding to the selected electrode identification(s) and the reference identification, and generates a third graphical interface to display at least one EEG trace indicative of the EEG signals associated with the selected electrode and reference electrode. The disclosed approach supports generating montages including bipolar montages, includes electrode types including at least one of strip, grid, or depth electrodes, and provides a real-time generation condition for a user-defined bipolar montage.
Claims Coverage
The provided material contains three independent claims. Each independent claim covers generating user-defined EEG montages from uniquely identified EEG electrode positions using graphical interfaces, user selection of electrode identifications and reference designations, EEG signal access, and graphical display of EEG traces; the inventive feature set differs by the selection workflow and the montage generation context.
Graphical electrode identifications overlaid on brain and scalp views
Generating a first graphical interface to display at least one graphical view of the patient's brain and/or scalp overlaid with a plurality of identifications corresponding to the plurality of EEG electrodes, where each identification uniquely references a position of each EEG electrode relative to the patient's brain and/or scalp.
Tool-driven selection and prompting for reference identification
Displaying a tool within the first graphical interface configured to be manipulated to select at least one identification of the plurality of identifications, and prompting a user to indicate at least one reference identification corresponding to the selected identification(s).
Automatic designation using drawing loops
Using at least two drawing loops to select electrodes for generating a first montage and a second montage, and upon forming the drawing loops, generating a second graphical interface to prompt the user to identify active electrode(s) or reference electrode(s) enclosed by the loops and automatically designating the other electrode(s).
EEG signal acquisition and EEG trace display
Acquiring EEG signals associated with the EEG electrodes corresponding to the at least one identification and the at least one reference identification, and generating a third graphical interface to display at least one EEG trace indicative of the EEG signals associated with the selected electrode and reference electrode.
Real-time bipolar montage generation
Generating a first graphical interface to display identifications corresponding to the plurality of EEG electrodes, displaying a tool configured to receive a user's input that selects a first identification and a second identification, prompting the user to indicate a reference identification from the selected identifications, and providing real-time generation of a user-defined bipolar montage.
Across the independent claims, the core inventive coverage is generating graphical brain and scalp views overlaid with uniquely referenced electrode identifications, using a tool and drawing loops to let a user select electrode identification(s) and indicate reference electrode(s) with automatic designation of the remaining electrode(s), then acquiring EEG signals and generating an interface that displays EEG traces; one independent claim further limits to real-time generation of a user-defined bipolar montage.
Stated Advantages
Enables generation of at least one user-defined montage from a plurality of EEG electrodes using graphical interfaces.
Automatically designates active and reference-related electrodes after the user identifies active electrode(s) or reference electrode(s) enclosed by drawing loops.
Generates graphical output including EEG traces indicative of electrode versus reference EEG signals and a comparison of EEG signals.
Enables real-time generation of at least one user-defined bipolar montage.
Documented Applications
Enabling generation of user-defined EEG montages from EEG electrodes positioned in a patient's brain, on the patient's brain, or on the patient's scalp.
Real-time generation of at least one user-defined bipolar montage from EEG electrodes positioned in a patient's brain, on the patient's brain, or on the patient's scalp.
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