Table 1.

Clinical summary

Patient	Implant location	MEA location	Epileptogenic zone	Pathology
1 (41F)	Right lateral and subtemporal regions	Right middle temporal gyrus 4 cm from anterior temporal pole	Right mesial temporal lobe	Non-specific, no mesial temporal sclerosis (MTS), no dysplasia
2 (30M)	Left lateral frontal, mesial frontal, and lateral temporal lobes	Left lateral frontal, minimum distance 2 cm superior to Broca's area and on different gyrus	Boundaries not defined but maximal area identified in left superior/lateral frontal lobe	N/A (MST only)
3 (39M)	Left lateral and mesial frontal lobe	Left lateral frontal, minimum distance 1.5 cm superior to Broca's area and on different gyrus	Left frontal operculum (3 × 3 cm2 cortical area), superior to Broca's area	Non-specific
4 (25F)	Left lateral and subtemporal regions	Left inferior temporal gyrus 2.5 cm from anterior temporal pole	Left mesial and anterolateral temporal lobe	Mild MTS

Summary of clinical data for the four patients, including demographic information, pathology results, the location covered by the clinical implant and the location of the MEA in each case. In the case of Patient 3, the MEA was located within the maximally involved area in the left frontal lobe, however the clinicians elected to perform multiple subpial transection (MST) instead of a resection because an additional epileptogenic region was found in the temporal lobe.