Figure 2From: Impact of norepinephrine on the relationship between pleth variability index and pulse pressure variations in ICU adult patientsReceiver operating characteristic curves showing the ability of PVI to discriminate patients with ΔPP above 13% in all patients and in patients receiving NE(+) or not receiving NE(-) norepinephrine. ΔPP, respiratory-induced variations in pulse pressure; PVI, Pleth Variabilty Index.Back to article page