EEG BSI-HHT in ischaemic stroke with multifocal infarction

Fathrul Azarshah Abdul Aziz, Hilman Fauzi, Mohd Ibrahim Shapiai, Aznida Firzah Abdul Aziz, Gerard Remijn, Zool Hilmi Ismail

研究成果: Chapter in Book/Report/Conference proceedingConference contribution


Electroencephalography (EEG) monitoring is known to be technically feasible and possibly clinically relevant to determine patients with acute ischaemic hemispheric stroke. The EEG is a very useful tool in understanding neurological dysfunction of stroke and likely improving the treatment and rehabilitation. The traditional method for diagnosing with EEG is mainly based on conventional Fast Fourier Transform (FFT). FFT is known to be limited to linear and stationary signal processing. Previously, a technique known as Brain Symmetry Index (BSI) has been proposed to determine the index value for asymmetry of blood flow in right and left brain hemispheres. The estimated index between stroke patient and healthy person ranges between zero and one. Similarly, the existing standard BSI limit the frequency band until 25Hz to eliminate EMG artifact, but at higher frequency band some useful information can also be represented. Hence, highlighting the limitation of FFT in providing the coefficient to calculate BSI index. In this study, we employed the Hilbert Huang Transform (HHT) to extract important feature for this research to use as coefficient in calculating the BSI index for stroke patients with multifocal infarction and healthy individuals. The proposed BSI-HHT spectral analysis conducted in this research was compared with several existing BSI techniques. In order to validate the performance of BSI-HHT, we conducted two experiments 1) 1-25Hz and 2) 1-64Hz for both patients and healthy individuals. The proposed technique offers constant BSI index for two cases and providing better resolution results in determining the index as compared to the existing BSI techniques.

ホスト出版物のタイトルTENCON 2017 - 2017 IEEE Region 10 Conference
出版社Institute of Electrical and Electronics Engineers Inc.
出版ステータス出版済み - 12 19 2017
イベント2017 IEEE Region 10 Conference, TENCON 2017 - Penang, マレーシア
継続期間: 11 5 201711 8 2017


名前IEEE Region 10 Annual International Conference, Proceedings/TENCON


その他2017 IEEE Region 10 Conference, TENCON 2017

All Science Journal Classification (ASJC) codes

  • コンピュータ サイエンスの応用
  • 電子工学および電気工学


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