Temporal Lobe Epilepsy Surgical Outcome Prediction
We wished to study pre-operative T1-weighted MRI of intractable temporal lobe epilepsy (TLE) patients who had undergone selective amygdala-hippocampectomy as part of their surgical treatment. We performed a voxel-based morphometry study of gray and white matter (GM,WM) concentration changes by comparing TLE patients with positive and negative surgical outcome. GM concentration changes were primarily located in the left lateral temporal neocortical region, while more extensive changes were found in left lateral temporal and occipital WM. Using those areas to define a region of interest, we showed that mean GM and WM concentration for all voxels within that region can be used to predict surgical outcome with 97% accuracy.
KeywordsTemporal Lobe Epilepsy Surgical Outcome Voxel-Based Morphometry Grey Matter Atrophy White Matter Atrophy Linear Discriminant Analysis
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