Method for assessing brain function and portable automatic brain function assessment apparatus
First Claim
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1. A method of determining a neurological state of a subject comprising the steps of:
- acquiring spontaneous and evoked signals through an electrode set;
de-noising the acquired signals;
extracting features from the de-noised signals using wavelet packet analysis; and
classifying the extracted features.
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Abstract
A method and apparatus for performing rapid brain assessment may provide emergency triage to head trauma patients by analyzing a combination of spontaneous and evoked brain potentials. The spontaneous and evoked potentials are analyzed, and the results classified, to present a real-time assessment of a patient'"'"'s brain, diagnosing any potential abnormalities therein.
79 Citations
34 Claims
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1. A method of determining a neurological state of a subject comprising the steps of:
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acquiring spontaneous and evoked signals through an electrode set; de-noising the acquired signals; extracting features from the de-noised signals using wavelet packet analysis; and classifying the extracted features. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for providing a triage assessment of a patient'"'"'s brain function comprising the steps of:
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measuring, using electrodes, the spontaneous brain activity of the patient; stimulating the patient and measuring the evoked brain activity therefrom; processing, using a processor coupled to a memory having instructions for processing stored therein, the spontaneous and evoked brain activity, wherein the processing is performed in real-time using a wavelet-packet algorithm to extract signal features; providing a triage assessment of the patient based on the processed brain activity. - View Dependent Claims (22)
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23. A method of determining a neurological state of a subject comprising the steps of:
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acquiring spontaneous and evoked signals through an electrode set; processing the spontaneous and evoked signals using a processor coupled to a memory having instructions for processing stored therein, wherein processing the spontaneous and evoked signals further comprises the steps of; de-noising the acquired signals; extracting features from the de-noised signals; classifying the extracted features; and determining a neurological state of the subject based on the classification, wherein determining the neurological state further comprises the steps of; determining if the neurological state is normal or abnormal; and determining if an abnormal neurological state that is organic in nature is global or lateral. - View Dependent Claims (24, 25, 26)
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27. A method of determining a neurological state of a subject comprising the steps of:
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acquiring brain electrical signals using a set of neurological electrodes; processing the acquired brain electrical signals using a processor coupled to a memory having instructions for processing stored therein, wherein processing the acquired brain electrical signals further comprises the steps of; de-noising the acquired signals; extracting features from the de-noised signals; classifying the extracted features into a first set of diagnostic categories using discriminant analysis, wherein the first set of diagnostic categories are indicative of whether the subject has a normal or an abnormal neurological state; and classifying an abnormal brain state into a second set of diagnostic categories using discriminant analysis, wherein the second set of diagnostic categories are indicative of whether the subject'"'"'s abnormal neurological state is psychiatric or “
functional”
in nature, organic in nature, or an emergency or “
Alert”
condition. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34)
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Specification