Fig. 5
From: Anesthesia depth monitoring during opioid free anesthesia – a prospective observational study
Secondary quantitative outcome. Data from processed electroencephalography of anesthesia and density spectral array for all ten patients in total intravenous anesthesia (TIVA) group. Patients in this figure were labeled a2 - j2 starting on top left to bottom right. All patients were considered to be in anesthetic steady state after skin incision