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Voxel-based morphometric MRI post-processing and PET/MRI co-registration reveal subtle abnormalities in cingulate epilepsy.

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机构： [1]Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China [2]Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China [3]Department of Nuclear Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China [4]Department of Radiology, Xuanwu Hospital, Capital Medical University, Beijing, China [5]Department of Pathology, Xuanwu Hospital, Capital Medical University, Beijing, China

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Diagnostic challenges exist in the presurgical evaluation of patients with magnetic resonance imaging (MRI) negative cingulate epilepsy (CE) because of the heterogeneity in clinical semiology and lack of localizing findings on scalp electroencephalographic (EEG) recordings. We aimed to examine the neuroimaging characteristics in a consecutive cohort of patients with MRI-negative CE with a focus on two image post-processing methods, including the MRI post-processing morphometric analysis program (MAP) and 18F-ﬂuorodeoxyglucose-positron emission tomography-MRI (PET/MRI) co-registration. Included in this retrospective study were patients with MRI-negative CE who met the following criteria: negative on preoperative MRI, invasive EEG (iEEG) confirmed cingulate gyrus-onset seizures, surgical resection of the cingulate gyrus with/without adjacent cortex, and seizure-free for more than 12 months. MAP and PET/MRI co-registration were performed and investigated by comparison to ictal intracranial EEG findings. Other characteristics obtained from scalp EEG, magnetoencephalography (MEG), iEEG, and pathological study were also reported. Ten patients were included, of which eight were diagnosed with anterior CE, one with middle CE, and one with posterior CE. The semiology included fear, embarrassment, vocalization, ictal pouting, asymmetric tonic posture, hypermotor, and automatism. Scalp EEG revealed unilateral or bilateral frontal-temporal onset. MEG localized the dipoles correctly in one patient (1/10). MAP detected subtle abnormalities in regions concordant with iEEG onset in seven patients (7/10) while PET/MRI co-registration revealed focal concordant hypometabolism in five patients (5/10). Combining MAP with PET/MRI co-registration improved the detection rate to 90 % in this cohort. The pathology was focal cortical dysplasia (FCD), including FCD type IIA in three, type IIB in three, and type I in four. MAP and PET/MRI co-registration show promising results in identifying subtle FCD abnormalities in CE with negative results on conventional MRI, which can be otherwise challenging. More importantly, a combination of MRI post-processing and PET/MRI co-registration can greatly improve the identification of epileptic abnormalities, which can be used as surgical target. MAP and PET/MRI co-registration should be incorporated into the routine presurgical evaluation. Copyright © 2021 The Author(s). Published by Elsevier B.V. All rights reserved.

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出版当年[2020]版：

大类 | 4 区医学

小类 | 4 区临床神经病学

最新[2023]版：

大类 | 4 区医学

小类 | 4 区临床神经病学

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出版当年[2019]版：

Q3 CLINICAL NEUROLOGY

最新[2023]版：

Q3 CLINICAL NEUROLOGY

影响因子： 2 最新[2023版] 2.3 最新五年平均 2.208 出版当年[2019版] 2.265 出版当年五年平均 2.178 出版前一年[2018版] 3.045 出版后一年[2020版]

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第一作者机构： [1]Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China

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通讯机构： [1]Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China [*1]Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, No.45 Changchun Street, Xicheng District, Beijing, 10053, China.

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