作者
John M O’Toole, Geraldine B Boylan, Rhodri O Lloyd, Robert M Goulding, Sampsa Vanhatalo, Nathan J Stevenson
发表日期
2017/7/1
期刊
Medical Engineering & Physics
卷号
45
页码范围
42-50
出版商
Elsevier
简介
Aim: To develop a method that segments preterm EEG into bursts and inter-bursts by extracting and combining multiple EEG features. Methods: Two EEG experts annotated bursts in individual EEG channels for 36 preterm infants with gestational age< 30 weeks. The feature set included spectral, amplitude, and frequency-weighted energy features. Using a consensus annotation, feature selection removed redundant features and a support vector machine combined features. Area under the receiver operator characteristic (AUC) and Cohen’s kappa (κ) evaluated performance within a cross-validation procedure. Results: The proposed channel-independent method improves AUC by 4–5% over existing methods (p< 0.001, n= 36), with median (95% confidence interval) AUC of 0.989 (0.973–0.997) and sensitivity–specificity of 95.8–94.4%. Agreement rates between the detector and experts’ annotations, κ= 0.72 (0.36 …
引用总数
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