Figure 7
Ictal SEEG findings. (A) SEEG recording of a right anterior mesio-lateral temporal seizure. The black arrow indicates the seizure onset, characterized by an initial high-amplitude spike-wave and fast low-voltage discharge localized in the amygdala (A, internal contacts) and hippocampus (B and C, internal contacts, red markers), and then, two seconds later, in the middle and inferior temporal gyri (A, B, C and TB, external contacts), followed by a slower rhythmic alpha spike discharge in the superior temporal gyrus (T) (Continued p. 332). (B) SEEG recording of a right lateral, basal and posterior temporal seizure. The black arrow indicates the seizure onset characterized by a polyspike immediately followed by a fast low-voltage discharge (blue markers) localized in the middle temporal gyrus (A, B and C, external leads), inferior temporal gyrus (TB, external leads), and superior temporal gyrus (T and TP), extending to the posterior SCZ (D). Secondary propagation to the right hippocampus and entorhinal cortex (C and TB, internal leads) is indicated by red markers.
R: right; Amygd: amygdala; ant: anterior; MTG: middle temporal gyrus; Hipp: hippocampus; SZ: schizencephaly; post: posterior; CG: cingulate gyrus; EC: entorhinal cortex; ITG: inferior temporal gyrus; STG: superior temporal gyrus; L: left.