Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)

Objective: The purpose of this study was to evaluate the gray matter (GM) alterations in patients with mesial temporal lobe epilepsy (MTLE) based on statistical models. Methods: High-resolution MRI data were collected from 64 adult MTLE patients and 100 healthy participants. Voxel Based Morphometry...

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Main Authors: Zhensheng Li, Quwen Gao, Kairun Peng, Jian Lin, Wei Wang, Weimin Wang, Bingmei Deng
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Neuroscience Informatics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2772528621000182
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author Zhensheng Li
Quwen Gao
Kairun Peng
Jian Lin
Wei Wang
Weimin Wang
Bingmei Deng
author_facet Zhensheng Li
Quwen Gao
Kairun Peng
Jian Lin
Wei Wang
Weimin Wang
Bingmei Deng
author_sort Zhensheng Li
collection DOAJ
description Objective: The purpose of this study was to evaluate the gray matter (GM) alterations in patients with mesial temporal lobe epilepsy (MTLE) based on statistical models. Methods: High-resolution MRI data were collected from 64 adult MTLE patients and 100 healthy participants. Voxel Based Morphometry (VBM) and Surfaced Based Morphometry (SBM) analysis were used to detect the alterations of cerebral GM of MTLE. We also built general linear models (GLM) for quantitatively evaluating regions of interest (ROIs) from the corrected VBM, SBM analysis. Results: The corrected VBM and SBM analyses identified discriminable GM alterations in the left and right MTLE groups located in the ipsilateral hippocampus, the perisylvian cortex in the left MTLE group and the bilateral orbitofrontal cortex in the right MTLE group. We extracted the ipsilateral hippocampal volume GLM of both unilateral MTLE groups. History of febrile convulsions and an increased number of AEDs were recognized as risk factors for ipsilateral hippocampus atrophy of unilateral MTLE. Moreover, early onset age was also considered a risk factor for left hippocampus atrophy in left MTLE. Significance: The current study established a quantitative assessment of unilateral MTLE based solely on GM alterations, without any influence of demographic risk factors. By using this GM-based protocol, we found that regions both inside and outside of the temporal lobes may be associated with the epileptic network of MTLE.
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spelling doaj.art-b387d2d7620f44f685d470f703d509bd2022-12-21T23:10:58ZengElsevierNeuroscience Informatics2772-52862021-12-0114100018Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)Zhensheng Li0Quwen Gao1Kairun Peng2Jian Lin3Wei Wang4Weimin Wang5Bingmei Deng6Department of Neurology, General Hospital of Southern Theatre Command, Guangzhou 510010, ChinaDepartment of Neurology, General Hospital of Southern Theatre Command, Guangzhou 510010, ChinaDepartment of Neurology, General Hospital of Southern Theatre Command, Guangzhou 510010, ChinaDepartment of Neurosurgery, General Hospital of Southern Theatre Command, Guangzhou 510010, ChinaDepartment of Neurosurgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510000, ChinaDepartment of Neurosurgery, General Hospital of Southern Theatre Command, Guangzhou 510010, China; Corresponding authors at: General Hospital of Southern Theatre Command, No. 111 of Liuhua Road, Yuexiu District, Guangzhou, 510010, China.Department of Neurology, General Hospital of Southern Theatre Command, Guangzhou 510010, China; Corresponding authors at: General Hospital of Southern Theatre Command, No. 111 of Liuhua Road, Yuexiu District, Guangzhou, 510010, China.Objective: The purpose of this study was to evaluate the gray matter (GM) alterations in patients with mesial temporal lobe epilepsy (MTLE) based on statistical models. Methods: High-resolution MRI data were collected from 64 adult MTLE patients and 100 healthy participants. Voxel Based Morphometry (VBM) and Surfaced Based Morphometry (SBM) analysis were used to detect the alterations of cerebral GM of MTLE. We also built general linear models (GLM) for quantitatively evaluating regions of interest (ROIs) from the corrected VBM, SBM analysis. Results: The corrected VBM and SBM analyses identified discriminable GM alterations in the left and right MTLE groups located in the ipsilateral hippocampus, the perisylvian cortex in the left MTLE group and the bilateral orbitofrontal cortex in the right MTLE group. We extracted the ipsilateral hippocampal volume GLM of both unilateral MTLE groups. History of febrile convulsions and an increased number of AEDs were recognized as risk factors for ipsilateral hippocampus atrophy of unilateral MTLE. Moreover, early onset age was also considered a risk factor for left hippocampus atrophy in left MTLE. Significance: The current study established a quantitative assessment of unilateral MTLE based solely on GM alterations, without any influence of demographic risk factors. By using this GM-based protocol, we found that regions both inside and outside of the temporal lobes may be associated with the epileptic network of MTLE.http://www.sciencedirect.com/science/article/pii/S2772528621000182Gray matterMesial temporal lobe epilepsyQuantitative evaluation
spellingShingle Zhensheng Li
Quwen Gao
Kairun Peng
Jian Lin
Wei Wang
Weimin Wang
Bingmei Deng
Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)
Neuroscience Informatics
Gray matter
Mesial temporal lobe epilepsy
Quantitative evaluation
title Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)
title_full Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)
title_fullStr Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)
title_full_unstemmed Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)
title_short Quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy (MTLE)
title_sort quantitative evaluation of gray matter alterations in patients with mesial temporal lobe epilepsy mtle
topic Gray matter
Mesial temporal lobe epilepsy
Quantitative evaluation
url http://www.sciencedirect.com/science/article/pii/S2772528621000182
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