Assessment of neovascularization within carotid plaques in patients with ischemic stroke

Figure 4 Data for intensity of enhancement (IE) measurements and observer agreement. A: Scatter plot of blood flow measurements (dB) shows data for observer 2 (x-axis) and observer 1 (y-axis); line of perfect agreement is shown; B: Agreement plot for IE measurements made by observers 1 and 2. Plots the difference between observers' measurements and mean measurements. Top and bottom lines show the 95% limits of agreement; middle line shows mean difference.