Fig. 3From: Effects of capecitabine treatment on the uptake of thymidine analogs using exploratory PET imaging agents: 18F-FAU, 18F-FMAU, and 18F-FLTTumor 18F-FAU Uptake in Patient 15. Axial (top) and coronal (bottom) 18F-FAU Images of a tumor of the gastroesophageal junction (arrow) at baseline (a) and after 1Â day of capecitabine therapy (b). Tumor SUVmean decreased from 3.47 to 2.07Back to article page