Figure 3.

Quantification results. (A and B) Mean and variability across subjects of LOGAN distribution volume ratio (DVR) and standardized uptake value (SUV) estimates as a function of reconstruction setting are reported. Gray bars indicate gray matter (GM), white bars indicate white matter (WM), and black bars indicate basal ganglia (BG). The mean and variability of WM/GM relative differences are also shown. An example of parametric maps computed with both SUV and LOGAN at different axial levels for a representative subject is reported in (C).