TY - JOUR
T1 - Normal Variants in Magnetoencephalography
AU - Rampp, Stefan
AU - Kakisaka, Yosuke
AU - Shibata, Sumiya
AU - Wu, Xingtong
AU - Rössler, Karl
AU - Buchfelder, Michael
AU - Burgess, Richard C.
N1 - Funding Information:
X. Wu was supported by the “FördervereinNeurochirurgischeForschung” of the University Hospital Erlangen, Germany. S. Rampp was supported by the Deutsche Forschungsgemeinschaft (DFG RA 2062/1-1). Y. Kakisaka and S. Shibata received research support from an unrestricted fellowship award from Elekta, Inc., to the Cleveland Clinic Foundation.
Publisher Copyright:
© 2020 Lippincott Williams and Wilkins. All rights reserved.
PY - 2020/11/1
Y1 - 2020/11/1
N2 - Summary:Normal variants, although not occurring frequently, may appear similar to epileptic activity. Misinterpretation may lead to false diagnoses. In the context of presurgical evaluation, normal variants may lead to mislocalizations with severe impact on the viability and success of surgical therapy. While the different variants are well known in EEG, little has been published in regard to their appearance in magnetoencephalography. Furthermore, there are some magnetoencephalography normal variants that have no counterparts in EEG. This article reviews benign epileptiform variants and provides examples in EEG and magnetoencephalography. In addition, the potential of oscillatory configurations in different frequency bands to appear as epileptic activity is discussed.
AB - Summary:Normal variants, although not occurring frequently, may appear similar to epileptic activity. Misinterpretation may lead to false diagnoses. In the context of presurgical evaluation, normal variants may lead to mislocalizations with severe impact on the viability and success of surgical therapy. While the different variants are well known in EEG, little has been published in regard to their appearance in magnetoencephalography. Furthermore, there are some magnetoencephalography normal variants that have no counterparts in EEG. This article reviews benign epileptiform variants and provides examples in EEG and magnetoencephalography. In addition, the potential of oscillatory configurations in different frequency bands to appear as epileptic activity is discussed.
KW - Epilepsy
KW - Magnetoencephalography
KW - Normal variants
UR - http://www.scopus.com/inward/record.url?scp=85095970095&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85095970095&partnerID=8YFLogxK
U2 - 10.1097/WNP.0000000000000484
DO - 10.1097/WNP.0000000000000484
M3 - Review article
C2 - 33165225
AN - SCOPUS:85095970095
SN - 0736-0258
VL - 37
SP - 518
EP - 536
JO - Journal of Clinical Neurophysiology
JF - Journal of Clinical Neurophysiology
IS - 6
ER -