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A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
Published on: November 13, 2016
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A tract-based spatial statistics study of white matter integrity in epilepsy
Xiao-Xia Hou1, Hong-Xuan Feng1, Bo Xu1
1Department of Neurology, The Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital) Suzhou 215002, Jiangsu, China.
American Journal of Translational Research
|January 11, 2023
Summary
Epilepsy is linked to widespread changes in white matter integrity, affecting key brain tracts. These diffusion tensor imaging (DTI) findings reveal alterations in fractional anisotropy (FA) and diffusivity measures, potentially underlying cognitive and motor issues.
Area of Science:
- Neuroimaging
- Neurology
- White Matter Research
Background:
- Epilepsy is a neurological disorder characterized by recurrent seizures.
- White matter alterations are increasingly recognized in epilepsy but require further characterization.
Purpose of the Study:
- To investigate changes in cerebral white matter diffusion tensor parameters in patients with epilepsy.
- To correlate white matter integrity with epilepsy using advanced neuroimaging techniques.
Main Methods:
- Retrospective study utilizing diffusion tensor imaging (DTI).
- Tract-based spatial statistics (TBSS) applied to 26 epileptic patients and 42 controls.
- Analysis of fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD).
Main Results:
- Epileptic patients showed decreased FA and increased MD, AD, and RD compared to controls.
- These significant changes (P < 0.05) were observed across multiple white matter tracts, including the corticospinal tract and cingulum.
Conclusions:
- Widespread white matter integrity disruption is evident in epilepsy.
- These microstructural changes may represent the structural basis for associated cognitive, affective, and motor deficits.
