Figure 2 | Scientific Reports

Figure 2

From: The slope of cerebral oxyhemoglobin oscillation is associated with vascular reserve capacity in large artery steno-occlusion

Figure 2

Typical example of data processing procedure. (A) Original ΔHbO2 signal of selected 16 channels of two included subjects from each group. (B) Grand averaged waveform of the HbO2 signals from the selected 16 channels into the left and right hemispheres to increase the integrity of the pulsatile oscillation using the synchronized response of averaged ΔHbO2 (C) Envelope detection of maximum slope values of ΔHbO2 in each hemisphere by time-differentiating between the two adjacent values of ΔHbO2 reflecting the steepness of the pulsation at each sampling points (D) Average slope value calculated from the envelope of the slope ΔHbO2.

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