System and method for determining a type of a brain dysfunction during medical procedures
AssigneeRambam Med-Tech Ltd.
InventorsDana BAR ON SHAHAF, Goded SHAHAF
Life of this patent
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Abstract
A method of determining a type of a brain dysfunction is discloses. The method may include: receiving an electroencephalogram (EEG) signal from an electrode placed on the head; calculating a regularity index for an electric activity of the brain based on EEG signal; detecting a temporal change in the regularity index; receiving a medical related input; and determining the type of brain dysfunction based on the temporal change in the regularity index and the medical related input.
Claims26
A method of determining a type of a brain dysfunction, comprising:
- receiving a first electroencephalogram (EEG) signal from an electrode placed on the first side of head of a patient at a location allowing detecting an electrical activity of a first hemisphere of the brain;
- receiving a second EEG signal from an electrode placed on the second side of the head of the patient at a location allowing detecting an electrical activity of a second hemisphere of the brain;
- calculating a similarity index for an electric activity between hemispheres of the brain based on the first and second signals;
- and
- detecting a temporal change in the similarity index by determining if the similarity index is at least one of:
- (a) below a first threshold value;
- and
- (b) a time derivative of the similarity index is above a second threshold value;
- receiving a medical related input, wherein the medical related input is at least one of:
- (i) an anesthetic profile during a medical procedure;
- and
- (ii) an input related to a medical event;
- and
- determining the type of brain dysfunction based on the temporal change in the similarity index and the medical related input.
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A method of determining a brain dysfunction, comprising:
- receiving an electroencephalogram (EEG) signal from an electrode placed on a patient' head at a location allowing detecting electrical activity of the brain;
- calculating regularity index for the electric activity of the brain based on the EEG signal;
- and
- detecting a regularity change in the regularity index by determining if the regularity index is at least one of:
- (a) below a first threshold value;
- and
- (b) a time derivative of the regularity index is above a second threshold value;
- receiving a medical related input, wherein the medical related input is at least one of:
- (i) input related to the patient's medical history;
- (ii) an anesthetic profile during a medical procedure;
- and
- (iii) an input related to a medical event;
- and
- determining a type of brain dysfunction based on the temporal change in the regularity index and the medical related input.
-64. (canceled)
Dependencies are inferred from the claim text.