Fig. 2
From: PET/MRI reveals ongoing metabolic activity in ACL grafts one year post-ACL reconstruction
Realignment of PET/MRI images for quantitative analysis. Images showing the re-sliced PET/MRI images for the tibial tunnel, intra-articular graft, and femoral tunnel. The images were aligned so that the tunnels and graft were perpendicular to the imaging plane on axial (top), sagittal (middle), and coronal (bottom) views. Multiple circular regions of interest matching the tunnel diameters were then positioned on the images (colored overlay) to quantify regional 18F-FDG uptake