Radiolabeled amino acids were applied to basic aspects in oncology

As the applications of metabolic imaging are expanding, radiolabeled amino acids has gained increased clinical interest. It is necessary to understand the basic aspects of amino acid metabolism and radiolabeled|and finally describe in the tumors. Have been most used clinically, such as, ¹¹C-methionine, ¹¹C-tyrosine and ¹²³I-iodomethyltyrosine. And the theoretic and clinical back-ground of amino acid imaging is clear and is fit for clinical applications. Contrasting with the ¹⁸F-FDG PET suggested that is less troubled by interfering uptake in inflammatory tissues. There is a more accuracy in the brain tumors specially. In the other tumor types has been shown sufficiently.