Figure 1From: Continuous noninvasive monitoring of barbiturate coma in critically ill children using the Bispectral™ index monitorEffect of synchronization. For patient 6, correlation between Bispectral™ index suppression ratio (SR-BIS) and electroencephalographic suppression ratio (SR-EEG) in one EEG was poor (-0.003). After they were synchronized, moving the SR-BIS values 5 minutes back in time, the correlation improved to 0.92.Back to article page