Subtle Hippocampal Subfield Volumetric Alterations in Clinically Diagnosed MRI-Negative Temporal Lobe Epilepsy.
It is implied that selective CA4-DG atrophy is a defining characteristic of the MRI-negative TLE phenotype, thereby corroborating the "dentate gate" failure hypothesis and providing a crucial diagnostic tool in settings with limited resources, where advanced techniques like 3-T MRI or invasive monitoring are not accessible.