Kameyama et al. [14] in his study performed prospectively in 21 patients with advanced gastric cancer showed that the sensitivity in the diagnosis of gastric cancer with FLT and FDG was similar, but the mean SUVmax⁡ for FLT (7 ± 3.3) was significantly lower than that for FDG (9.4 ± 6.3) (similar to results of Kim et al. [9]). This evidence concerns the gene SMUG1 and gastric cancer.