ammonia n-13

Ammonia N-13 is a radioactive diagnostic agent used in positron emission tomography (PET) imaging, primarily for the evaluation of myocardial perfusion in patients with suspected or existing coronary artery disease. The active ingredient, [13N] ammonia, is a small molecule radiopharmaceutical labeled with the radioisotope nitrogen N 13. After intravenous administration, it is rapidly extracted by myocardial cells and metabolized to N‑13 glutamine, resulting in intracellular retention that enables high-quality PET visualization of the myocardium. Ammonia N‑13 may also be used investigationally for brain tumor differentiation and has shown potential utility in liver and prostate cancer diagnosis[1][2][4][5][8].

Brand names

Ammonia N 13

Other names

[13N] ammonianitrogen-13 ammonianitrogen13 ammonianitrogen 13 ammonia13nh3