Network of ictal head version in mesial temporal lobe epilepsy

Abstract Objective Ictal head version is a common clinical manifestation of mesial temporal lobe epilepsy (MTLE). Nevertheless, the location of the symptomatogenic zone and the network involved in head version remains unclear. We attempt to explain these problems by analyzing interictal 18FDG‐PET im...

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Main Authors: Yao Wang, Xiu Wang, Lin Sang, Chao Zhang, Bao‐tian Zhao, Jia‐jie Mo, Wen‐han Hu, Xiao‐qiu Shao, Feng Wang, Lin Ai, Jian‐guo Zhang, Kai Zhang
Format: Article
Language:English
Published: Wiley 2020-11-01
Series:Brain and Behavior
Subjects:
Online Access:https://doi.org/10.1002/brb3.1820
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author Yao Wang
Xiu Wang
Lin Sang
Chao Zhang
Bao‐tian Zhao
Jia‐jie Mo
Wen‐han Hu
Xiao‐qiu Shao
Feng Wang
Lin Ai
Jian‐guo Zhang
Kai Zhang
author_facet Yao Wang
Xiu Wang
Lin Sang
Chao Zhang
Bao‐tian Zhao
Jia‐jie Mo
Wen‐han Hu
Xiao‐qiu Shao
Feng Wang
Lin Ai
Jian‐guo Zhang
Kai Zhang
author_sort Yao Wang
collection DOAJ
description Abstract Objective Ictal head version is a common clinical manifestation of mesial temporal lobe epilepsy (MTLE). Nevertheless, the location of the symptomatogenic zone and the network involved in head version remains unclear. We attempt to explain these problems by analyzing interictal 18FDG‐PET imaging and ictal stereo‐electroencephalography (SEEG) recordings in MTLE patients. Methods Fifty‐eight patients with MTLE were retrospectively analyzed. The patients were divided into version (+) and (−) groups according to the occurrence of versive head movements. The interictal PET data were compared among 18 healthy controls and the (+) and (−) groups. Furthermore, epileptogenicity index (EI) values and correlations with the onset time of head version were analyzed with SEEG. Results Intergroup comparisons showed that PET differences were observed in the middle temporal neocortex (MTN), posterior temporal neocortex (PTN), supramarginal gyrus (SMG), and inferior parietal lobe (IPL). The EI values in the SMG, MTN, and PTN were significantly higher in the version (+) group than in the version (−) group. A linear relationship was observed between head version onset and ipsilateral onset time in the SMG, orbitofrontal cortex (OFC), MTN, and PTN. A linear relationship was observed between EI, the difference between version onset and temporal neocortex onset, and the y‐axis of the MNI coordinate. Conclusion The generation of ictal head version contributes to the propagation of ictal discharges to the intraparietal sulcus (IPS) area. The network of version originates from a mesial temporal lobe structure, passes through the MTN, PTN, and SMG, and likely ends at the IPS.
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spelling doaj.art-202e96336b30448caea0a73798bf5d982022-12-21T22:53:24ZengWileyBrain and Behavior2162-32792020-11-011011n/an/a10.1002/brb3.1820Network of ictal head version in mesial temporal lobe epilepsyYao Wang0Xiu Wang1Lin Sang2Chao Zhang3Bao‐tian Zhao4Jia‐jie Mo5Wen‐han Hu6Xiao‐qiu Shao7Feng Wang8Lin Ai9Jian‐guo Zhang10Kai Zhang11Department of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaDepartment of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaEpilepsy Center Peking University First Hospital Fengtai Hospital Beijing ChinaDepartment of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaDepartment of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaDepartment of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaBeijing Key Laboratory of Neurostimulation Beijing ChinaDepartment of Neurology Beijing Tiantan HospitalCapital Medical University Beijing ChinaDepartment of Neurosurgery General Hospital of Ningxia Medical University Ningxia ChinaDepartment of Nuclear Medicine Beijing Tiantan Hospital Capital Medical University Beijing ChinaDepartment of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaDepartment of Neurosurgery Beijing Tiantan Hospital Capital Medical University Beijing ChinaAbstract Objective Ictal head version is a common clinical manifestation of mesial temporal lobe epilepsy (MTLE). Nevertheless, the location of the symptomatogenic zone and the network involved in head version remains unclear. We attempt to explain these problems by analyzing interictal 18FDG‐PET imaging and ictal stereo‐electroencephalography (SEEG) recordings in MTLE patients. Methods Fifty‐eight patients with MTLE were retrospectively analyzed. The patients were divided into version (+) and (−) groups according to the occurrence of versive head movements. The interictal PET data were compared among 18 healthy controls and the (+) and (−) groups. Furthermore, epileptogenicity index (EI) values and correlations with the onset time of head version were analyzed with SEEG. Results Intergroup comparisons showed that PET differences were observed in the middle temporal neocortex (MTN), posterior temporal neocortex (PTN), supramarginal gyrus (SMG), and inferior parietal lobe (IPL). The EI values in the SMG, MTN, and PTN were significantly higher in the version (+) group than in the version (−) group. A linear relationship was observed between head version onset and ipsilateral onset time in the SMG, orbitofrontal cortex (OFC), MTN, and PTN. A linear relationship was observed between EI, the difference between version onset and temporal neocortex onset, and the y‐axis of the MNI coordinate. Conclusion The generation of ictal head version contributes to the propagation of ictal discharges to the intraparietal sulcus (IPS) area. The network of version originates from a mesial temporal lobe structure, passes through the MTN, PTN, and SMG, and likely ends at the IPS.https://doi.org/10.1002/brb3.1820epileptogenicity indexhead versionnetworkpositron emission tomographytemporal lobe epilepsy
spellingShingle Yao Wang
Xiu Wang
Lin Sang
Chao Zhang
Bao‐tian Zhao
Jia‐jie Mo
Wen‐han Hu
Xiao‐qiu Shao
Feng Wang
Lin Ai
Jian‐guo Zhang
Kai Zhang
Network of ictal head version in mesial temporal lobe epilepsy
Brain and Behavior
epileptogenicity index
head version
network
positron emission tomography
temporal lobe epilepsy
title Network of ictal head version in mesial temporal lobe epilepsy
title_full Network of ictal head version in mesial temporal lobe epilepsy
title_fullStr Network of ictal head version in mesial temporal lobe epilepsy
title_full_unstemmed Network of ictal head version in mesial temporal lobe epilepsy
title_short Network of ictal head version in mesial temporal lobe epilepsy
title_sort network of ictal head version in mesial temporal lobe epilepsy
topic epileptogenicity index
head version
network
positron emission tomography
temporal lobe epilepsy
url https://doi.org/10.1002/brb3.1820
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