Figure 1From: Near-infrared spectroscopy technique to evaluate the effects of red blood cell transfusion on tissue oxygenationRelationship between baseline and change in thenar tissue oxygen saturation reperfusion phase upslopes. x axis: Baseline thenar tissue oxygen saturation (StO2) upslope of the reperfusion phase (%/second); y axis: the difference between the StO2 upslopes of the reperfusion phase after and before transfusion (%/second). r2 = 0.42; P < 0.0001.Back to article page