Method and apparatus for automatic evoked potentials assessment

Abstract

Systems and methods for assessing a patient's neurologic state based on auditory evoked responses are provided.

1 - 23 . (canceled) 
     
     
         24 . A system for processing event-related brain potential signals of a patient, comprising:
 one or more neurological electrodes configured to collect event-related brain potential signals generated in response to a stimulus provided to the patient;   one or more stimulus generators configured to provide sensory or cognitive stimuli, or motor events to the patient;   a signal processor operatively connected to the one or more neurological electrodes and configured to receive the event-related brain potential signals; and   wherein the signal processor s configured to:
 denoise the event-related brain potential signals received by the signal processor; 
 transform the denoised event-related brain potential signals to a transform domain; and 
 automatically detect locations of one or more peaks of the event-related brain potential signals in the transform domain. 
   
     
     
         25 . The system of  claim 24 , wherein the processor configured to reject artifacts present in the event-related brain potentials prior to denoising. 
     
     
         26 . The system of  claim 25 , wherein the processor is configured to reject artifacts present in the event-related potentials using a plurality of automated artifact detectors working in parallel. 
     
     
         27 . The system of  claim 24 , wherein the processor is configured to transform the denoised event-related brain potential signals to a wavelet transform domain. 
     
     
         28 . The system of  claim 24 , wherein the processor is configured to extract a set of quantitative features from the event-related brain potential signals. 
     
     
         29 . The system of  claim 28 , wherein the processor is configured to compare the set of quantitative features to one or more feature sets stored in a storage system to allow assessment or monitoring of the patient's neurological state. 
     
     
         30 . The system of  claim 24 , wherein the processor is configured to extract features related to the peaks in the patient's event-related potential signals. 
     
     
         31 . The system of  claim 30 , wherein the processor is configured to detect the amplitude or the timing of the peaks in the patient's event-related potential signals. 
     
     
         32 . The system of  claim 24 , wherein the processor is configured to locate peaks of the event-related potential signals in time domain. 
     
     
         33 . The system of  claim 32 , wherein the processor is configured to combined the peak locations in time domain with the peak locations in the transform domain. 
     
     
         34 . The system of  claim 24 , wherein the stimulus provided to the patient is an auditory stimulus and the event-related potential signal generated in an auditory brainstem response. 
     
     
         35 . The system of  claim 24 , wherein the stimulus provided to the patient is a visual stimulus.