Figure 1. Example of calculation of FR resection ratio and FR channel resection ratio for 1 patient who became seizure-free.

Seven channels had ≥0.2/min fast ripple (FR) rate and were included in the calculations. Bars depict the number of FRs on each of the 7 channels. Dark bars represent resected channels; white bars represent nonresected channels. FR resection ratio clearly exceeds the 0.5 threshold, whereas FR channel resection ratio does not.