Timothy J. Mitchell , Jeffrey J. Neil , John M. Zempel , Liu Lin Thio , Terrie E. Inder , G. Larry Bretthorst
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引用次数: 7
Abstract
Objective
To implement an automated analysis of EEG recordings from prematurely-born infants and thus provide objective, reproducible results.
Methods
Bayesian probability theory is employed to compute the posterior probability for developmental features of interest in EEG recordings. Currently, these features include smooth delta waves (0.5–1.5 Hz, >100 μV), delta brushes (delta portion: 0.5–1.5 Hz, >100 μV; “brush” portion: 8–22 Hz, <75 μV), and interburst intervals (<10 μV), though the approach taken can be generalized to identify other EEG features of interest.
Results
When compared with experienced electroencephalographers, the algorithm had a true positive rate between 72% and 79% for the identification of delta waves (smooth or “brush”) and interburst intervals, which is comparable to the inter-rater reliability. When distinguishing between smooth delta waves and delta brushes, the algorithm’s true positive rate was between 53% and 88%, which is slightly less than the inter-rater reliability.
Conclusion
Bayesian probability theory can be employed to consistently identify features of EEG recordings from premature infants.
Significance
The identification of features in EEG recordings provides a first step towards the automated analysis of EEG recordings from premature infants.
期刊介绍:
As of January 1999, The journal Electroencephalography and Clinical Neurophysiology, and its two sections Electromyography and Motor Control and Evoked Potentials have amalgamated to become this journal - Clinical Neurophysiology.
Clinical Neurophysiology is the official journal of the International Federation of Clinical Neurophysiology, the Brazilian Society of Clinical Neurophysiology, the Czech Society of Clinical Neurophysiology, the Italian Clinical Neurophysiology Society and the International Society of Intraoperative Neurophysiology.The journal is dedicated to fostering research and disseminating information on all aspects of both normal and abnormal functioning of the nervous system. The key aim of the publication is to disseminate scholarly reports on the pathophysiology underlying diseases of the central and peripheral nervous system of human patients. Clinical trials that use neurophysiological measures to document change are encouraged, as are manuscripts reporting data on integrated neuroimaging of central nervous function including, but not limited to, functional MRI, MEG, EEG, PET and other neuroimaging modalities.