IEEE Transactions on Neural Systems and Rehabilitation Engineering (Jan 2024)

Automatic Detection of Scalp High-Frequency Oscillations Based on Deep Learning

  • Yutang Li,
  • Dezhi Cao,
  • Junda Qu,
  • Wei Wang,
  • Xinhui Xu,
  • Lingyu Kong,
  • Jianxiang Liao,
  • Wenhan Hu,
  • Kai Zhang,
  • Jihan Wang,
  • Chunlin Li,
  • Xiaofeng Yang,
  • Xu Zhang

DOI
https://doi.org/10.1109/TNSRE.2024.3389010
Journal volume & issue
Vol. 32
pp. 1627 – 1636

Abstract

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Scalp high-frequency oscillations (sHFOs) are a promising non-invasive biomarker of epilepsy. However, the visual marking of sHFOs is a time-consuming and subjective process, existing automatic detectors based on single-dimensional analysis have difficulty with accurately eliminating artifacts and thus do not provide sufficient reliability to meet clinical needs. Therefore, we propose a high-performance sHFOs detector based on a deep learning algorithm. An initial detection module was designed to extract candidate high-frequency oscillations. Then, one-dimensional (1D) and two-dimensional (2D) deep learning models were designed, respectively. Finally, the weighted voting method is used to combine the outputs of the two model. In experiments, the precision, recall, specificity and F1-score were 83.44%, 83.60%, 96.61% and 83.42%, respectively, on average and the kappa coefficient was 80.02%. In addition, the proposed detector showed a stable performance on multi-centre datasets. Our sHFOs detector demonstrated high robustness and generalisation ability, which indicates its potential applicability as a clinical assistance tool. The proposed sHFOs detector achieves an accurate and robust method via deep learning algorithm.

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