Fig. 6.

Comparison of ¹⁸F-FDG kinetics parameters estimated with the delayed input function and right heart input function models. Substantial differences between the models were observed for the parameters k₁, k₂, and F_B, which are primarily determined by the early phase of ¹⁸F-FDG kinetics. The ¹⁸F-FDG net uptake rate K_i, phosphorylation rate k₃, and volume of distribution F_e, were quite similar between the models, as data fell close to the line of identity