Abstract
Objectives
This study aimed to measure the global brain glucose metabolism of patients with temporal lobe epilepsy (TLE) using MIMneuro software based on the normal brain glucose metabolism database.
Methods
In this cross-sectional study, 23 patients (11 males and 12 females, mean age 25.6 ± 10.1 years) with TLE who underwent 18F-labeled fluoro-2-deoxyglucose positron emission tomography (18F-FDG PET) were enrolled. 18F-FDG PET images were then imported into MIMneuro software, which can automatically analyze the differences in regional brain glucose metabolism between patients and a normal database, and the results of different brain regions were presented by values of Z-score.
Results
In patients with TLE, 18F-FDG PET imaging showed that in addition to the presence of temporal lobe hypometabolism, there was hypometabolism in the ipsilateral hippocampus, parahippocampal gyrus, insula, amygdala, temporal operculum, and bilateral cerebellar hemisphere, while hypermetabolism was found in the contralateral temporal lobe, frontal lobe, parietal lobe, parietal lobule, angular gyrus, and precentral gyrus. There was no significant difference in brain areas between the left and the right temporal lobe seizures (P > 0.05).
Conclusions
We found that TLE has a specific characteristic in terms of brain glucose metabolism, and the underlying mechanism needs to be further studied that may be helpful to localize seizure focus.
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Abbreviations
- SPM:
-
Statistical parametric mapping
- ES:
-
Epileptogenic side
- MTLE:
-
Mesial temporal lobe epilepsy
- TLE:
-
Temporal lobe epilepsy
- HS:
-
Hippocampal sclerosis
- ROI:
-
Region of interest
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Acknowledgments
This study was supported by the Project of New Technology in the Second Affiliated Hospital of Air Force Medical University and Beijing Municipal Administration of the Hospitals’ Ascent Plan, Code: DFL20180802.
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This study was approved by the Ethics Committee of the Second Affiliated Hospital of Air Force Medical University (Xi’an, China).
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Guo, K., Wei, Y., Yuan, M. et al. Identifying the characteristics of brain glucose metabolism using normal 18F-FDG PET database in patients with temporal lobe epilepsy. Neurol Sci 41, 3219–3226 (2020). https://doi.org/10.1007/s10072-020-04426-1
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DOI: https://doi.org/10.1007/s10072-020-04426-1