Figure 1From: Assessment of tissue oxygen tension: comparison of dynamic fluorescence quenching and polarographic electrode technique(A) Plot of fluorescence, polarographic and predicted partial oxygen tension (PO2) against time. (B) Correlation plot of polarographic and fluorescence measurement techniques. (C) Bland–Altman plot of polarographic and fluorescence techniques demonstrating proportional bias arising from one (or both) of the techniques.Back to article page