Figure 4From: Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations EEG registrations in pig 3. a) Before the procedure. Synchronous background activity 4-6 Hz with highest amplitudes in the frontotemporal region. b) After injection of the acoustic coupling fluid. There was no evidence of seizure activity on EEG.Back to article page