Cerebellar white and gray matter abnormalities in temporal lobe epilepsy: a voxel-based morphometry study

Area of Science:

• Neuroimaging
• Neurology
• Epilepsy Research

Background:

• Previous studies suggest cerebellar deficits in temporal lobe epilepsy (TLE).
• Cerebellar region functions are increasingly recognized, necessitating detailed TLE-related changes investigation.
• This study focuses on cerebellar structural abnormalities in TLE patients.

Purpose of the Study:

• To evaluate cerebellar structural abnormalities in TLE patients using the Spatially Unbiased Infratentorial (SUIT) toolbox.
• To explore the relationship between cerebellar region changes and cognitive function in TLE.

Main Methods:

• Voxel-based morphometry (VBM) using the SUIT toolbox on high-resolution T1-weighted MRI scans.
• Comparison of 32 TLE patients with 39 healthy controls (HC).
• Partial correlation analysis between cerebellar volumes and cognitive scores (MMSE, MoCA).

Main Results:

• TLE patients showed reduced gray matter volume in Left lobule VI and white matter volume in Right Crus II compared to HC.
• Left lobule VI gray matter volume positively correlated with MMSE scores.
• No significant correlation found between Right Crus II white matter volume and cognitive scores; MMSE was more effective than MoCA in detecting cognitive impairment.

Conclusions:

• Findings support the link between TLE and structural cerebellar changes (gray and white matter).
• Provides insights into TLE neurobiology.
• Potential implications for improved diagnostic methods and treatment strategies.