PMID- 33942534
OWN - NLM
STAT- MEDLINE
DCOM- 20220201
LR  - 20220201
IS  - 1755-5949 (Electronic)
IS  - 1755-5930 (Print)
IS  - 1755-5930 (Linking)
VI  - 27
IP  - 7
DP  - 2021 Jul
TI  - Magnetoencephalography for epileptic focus localization based on Tucker 
      decomposition with ripple window.
PG  - 820-830
LID - 10.1111/cns.13643 [doi]
AB  - AIMS: To improve the Magnetoencephalography (MEG) spatial localization precision 
      of focal epileptic. METHODS: 306-channel simulated or real clinical MEG is 
      estimated as a lower-dimensional tensor by Tucker decomposition based on 
      Higher-order orthogonal iteration (HOOI) before the inverse problem using 
      linearly constraint minimum variance (LCMV). For simulated MEG data, the proposed 
      method is compared with dynamic imaging of coherent sources (DICS), multiple 
      signal classification (MUSIC), and LCMV. For clinical real MEG of 31 epileptic 
      patients, the ripples (80-250 Hz) were detected to compare the source location 
      precision with spikes using the proposed method or the dipole-fitting method. 
      RESULTS: The experimental results showed that the positional accuracy of the 
      proposed method was higher than that of LCMV, DICS, and MUSIC for simulation 
      data. For clinical real MEG data, the positional accuracy of the proposed method 
      was higher than that of dipole-fitting regardless of whether the time window was 
      ripple window or spike window. Also, the positional accuracy of the ripple window 
      was higher than that of the spike window regardless of whether the source 
      location method was the proposed method or the dipole-fitting method. For both 
      shallow and deep sources, the proposed method provided effective performance. 
      CONCLUSION: Tucker estimation of MEG for source imaging by ripple window is a 
      promising approach toward the presurgical evaluation of epileptics.
CI  - (c) 2021 The Authors. CNS Neuroscience & Therapeutics Published by John Wiley & 
      Sons Ltd.
FAU - Shi, Li-Juan
AU  - Shi LJ
AD  - School of Biological Science and Medical Engineering, Beihang University, 
      Beijing, China.
AD  - Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine, Beihang 
      University, Beijing, China.
AD  - Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang 
      University, Beijing, China.
FAU - Wei, Bo-Xuan
AU  - Wei BX
AD  - School of Biological Science and Medical Engineering, Beihang University, 
      Beijing, China.
AD  - Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine, Beihang 
      University, Beijing, China.
AD  - Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang 
      University, Beijing, China.
AD  - Hefei Innovation Research Institute, Beihang University, Hefei, Anhui, China.
FAU - Xu, Lu
AU  - Xu L
AD  - School of Biological Science and Medical Engineering, Beihang University, 
      Beijing, China.
AD  - Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine, Beihang 
      University, Beijing, China.
AD  - Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang 
      University, Beijing, China.
FAU - Lin, Yi-Cong
AU  - Lin YC
AD  - Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 
      China.
AD  - Brain Functional Disease and Neuromodulation of Beijing Key Laboratory, Beijing, 
      China.
FAU - Wang, Yu-Ping
AU  - Wang YP
AD  - Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, 
      China.
AD  - Brain Functional Disease and Neuromodulation of Beijing Key Laboratory, Beijing, 
      China.
FAU - Zhang, Ji-Cong
AU  - Zhang JC
AUID- ORCID: 0000-0002-3325-5371
AD  - School of Biological Science and Medical Engineering, Beihang University, 
      Beijing, China.
AD  - Beijing Advanced Innovation Centre for Big Data-Based Precision Medicine, Beihang 
      University, Beijing, China.
AD  - Beijing Advanced Innovation Centre for Biomedical Engineering, Beihang 
      University, Beijing, China.
AD  - Hefei Innovation Research Institute, Beihang University, Hefei, Anhui, China.
LA  - eng
GR  - Z200024/Beijing Natural Science Foundation/
GR  - 2016YFF0201002/National Key Research and Development Program of China/
GR  - GXXT-2019-044/University Synergy Innovation Program of Anhui Province, Hefei 
      Innovation Research Institute, Beihang University/
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20210504
PL  - England
TA  - CNS Neurosci Ther
JT  - CNS neuroscience & therapeutics
JID - 101473265
SB  - IM
MH  - Action Potentials/*physiology
MH  - Adolescent
MH  - Adult
MH  - Epilepsies, Partial/*diagnostic imaging/physiopathology/*therapy
MH  - Female
MH  - Humans
MH  - Magnetoencephalography/*instrumentation/*methods/standards
MH  - Male
MH  - Middle Aged
MH  - Young Adult
PMC - PMC8193700
OTO - NOTNLM
OT  - MEG
OT  - focal epileptic
OT  - higher-order orthogonal iteration
OT  - ripple
OT  - source imaging
OT  - tucker decomposition
COIS- None of the authors have any financial disclosure or Conflicts of interest.
EDAT- 2021/05/05 06:00
MHDA- 2022/02/02 06:00
PMCR- 2021/05/04
CRDT- 2021/05/04 07:22
PHST- 2020/11/25 00:00 [received]
PHST- 2021/03/24 00:00 [accepted]
PHST- 2021/05/05 06:00 [pubmed]
PHST- 2022/02/02 06:00 [medline]
PHST- 2021/05/04 07:22 [entrez]
PHST- 2021/05/04 00:00 [pmc-release]
AID - CNS13643 [pii]
AID - 10.1111/cns.13643 [doi]
PST - ppublish
SO  - CNS Neurosci Ther. 2021 Jul;27(7):820-830. doi: 10.1111/cns.13643. Epub 2021 May 
      4.