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Erschienen in: Neurological Sciences 4/2021

12.08.2020 | Original Article

Distinct patterns of hippocampal subfield volume loss in left and right mesial temporal lobe epilepsy

verfasst von: Hossein Sanjari Moghaddam, Mohammad Hadi Aarabi, Jafar Mehvari-Habibabadi, Roya Sharifpour, Bahram Mohajer, Neda Mohammadi-Mobarakeh, Seyed Sohrab Hashemi-Fesharaki, Kost Elisevich, Mohammad-Reza Nazem-Zadeh

Erschienen in: Neurological Sciences | Ausgabe 4/2021

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Abstract

Objective

To investigate the pattern and severity of hippocampal subfield volume loss in patients with left and right mesial temporal lobe epilepsy (mTLE) using quantitative MRI volumetric analysis.

Methods

A total of 21 left and 14 right mTLE subjects, as well as 15 healthy controls, were enrolled in this cross-sectional study. A publically available magnetic resonance imaging (MRI) brain volumetry system (volBrain) was used for volumetric analysis of hippocampal subfields. The T1-weighted images were processed with a HIPS pipeline.

Results

A distinct pattern of hippocampal subfield atrophy was found between left and right mTLE patients when compared with controls. Patients with left mTLE exhibited ipsilateral hippocampal atrophy and segmental volume depletion of the Cornu Ammonis (CA) 2/CA3, CA4/dentate gyrus (DG), and strata radiatum-lacunosum-moleculare (SR-SL-SM). Those with right mTLE exhibited similar ipsilateral hippocampal atrophy but with additional segmental CA1 volume depletion. More extensive bilateral subfield volume loss was apparent with right mTLE patients.

Conclusion

We demonstrate that left and right mTLE patients show a dissimilar pattern of hippocampal subfield atrophy, suggesting the pathophysiology of epileptogenesis in left and right mTLE to be different.
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Metadaten
Titel
Distinct patterns of hippocampal subfield volume loss in left and right mesial temporal lobe epilepsy
verfasst von
Hossein Sanjari Moghaddam
Mohammad Hadi Aarabi
Jafar Mehvari-Habibabadi
Roya Sharifpour
Bahram Mohajer
Neda Mohammadi-Mobarakeh
Seyed Sohrab Hashemi-Fesharaki
Kost Elisevich
Mohammad-Reza Nazem-Zadeh
Publikationsdatum
12.08.2020
Verlag
Springer International Publishing
Erschienen in
Neurological Sciences / Ausgabe 4/2021
Print ISSN: 1590-1874
Elektronische ISSN: 1590-3478
DOI
https://doi.org/10.1007/s10072-020-04653-6

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