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Fig. 4 | BMC Anesthesiology

Fig. 4

From: Effect of raw electroencephalogram-guided anesthesia administration on postoperative outcomes in elderly patients undergoing abdominal major surgery: a randomized controlled trial

Fig. 4

Examples of high(left) and low(right) alpha power within a left frontal spectral display. The vertical axis is frequency (Hz). The blue and red colors represent low and high power (dB). The horizontal axis is time (s). The dark horizontal lines present the alpha band range (8–12 Hz)

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BMC Anesthesiology

ISSN: 1471-2253

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