Cancer Imaging Using Positron Emission Tomography/Computed Tomography

Positron Emission Tomography/Computed Tomography (PET/CT) modality has been widely used in nuclear medicine for cancer imaging by using fluorine-18 (F-18) or gallium-68 (Ga-68) radionuclides as positron emitters. In this work, we discuss production aspects of F- 18 and Ga-68 radionuclides, PET/CT procedure as well as an example of cancer imaging using F-18 and Ga-68 based PET/CT scan. In terms of radioactivity yields at the same proton energy and proton dose, F-18 shows higher radioactivity yield than Ga-68. Furthermore, examples of cancer imaging using F-18 based PET/CT scan indicate a much clearer image compared to that of Ga-68 based PET/CT scan, though both results are acceptable in nuclear medicine for cancer diagnosis.