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FIGURE 1. Axial images (from left to right, MRI, composite SISCOM, and composite subtraction SPECT) and rainbow color scales for left MTLE group (top) and right MTLE group (bottom). At far right is composite subtraction SPECT image of MTS subgroup, matched to same MRI plane as left MTLE group. Based on highest-intensity values in image (highest-intensity value being highest value in color scale), intensities were 0–15 for left MTLE group, 0–14 for right MTLE group, and 0–10 for MTS subgroup. Transition from yellow to green represents an intensity of 6 in both right and left MTLE group color scales and an intensity of 5 for MTS subgroup. All groups show similar patterns of hyperperfusion. Entire anterior temporal lobe shows pronounced hyperperfusion in this view. Also present are distant regions of hyperperfusion in orbitofrontal and contralateral temporal lobes, likely representing patterns of seizure propagation.
