System and method for EEG imaging of cerebral activity using small electrode sets
AssigneeAspect Medical Systems, Inc.
InventorsTim Kofol, Scott Greenwald, Philip Devlin
Life of this patent
Estimating the term…
Abstract
The invention provides a method of estimating cerebral sources of electrical activity from a small subset of EEG channels utilizing existing methods to provide a 3-dimensional, discrete, distributed, linear solution to the inverse problem using inputs consisting of a small number of EEG channels (e.g., 4 channels) augmented with synthetic EEG data for the other channels. The resultant image of cerebral electrical activity in the region of the EEG channels from which data is recorded is of comparable spatial resolution in the corresponding region to images of cerebral electrical activity obtained using a complete set of EEG channels (e.g., using 24 channels).
Claims4
A method of estimating cerebral sources of electrical activity from a set of EEG channels comprising the steps of:
- obtaining M channels of measured EEG signal data and N-M channels of synthetic EEG signal data, where M<N;
- creating sets of N-M channels of synthetic EEG signal data;
- calculating an inverse solution from a combination of said sets of N-M channels of EEG signal data and said M channels of EEG signal data.
Dependencies are inferred from the claim text.