Figure 6

¹⁸F-FOL and ¹⁸F-FDG uptake, and density of macrophages in rabbit aorta. Association between in vivo ¹⁸F-FOL uptake in the rabbit aorta and (A) RAM-11-positive (macrophages) area (%; linear mixed model; slope = 3.82, 95% confidence interval of 1.60 to 6.05), and (B) ¹⁸F-FDG uptake (linear mixed model; slope = 0.22, 95% confidence interval of 0.058 to 0.38). The data of each rabbit are displayed in a different color. TBR = target-to-background ratio; maximum standardized uptake value (SUV) of aorta divided by mean SUV of blood as determined from the inferior vena cava (SUV_{max, aorta}/SUV_{mean, blood}).