Modern imaging methods are undergoing intensive development not only in the development of new technologies, but also in efforts to combine formerly independent and separate diagnostic methods.The objective of combining methods of nuclear medicine and radio-diagnostic depiction is to provide functional information on the metabolism of the pathological process and at the same time to depict its structures and exact anatomical localization. The objective of our communication is to present a brief information on the most modern diagnostic modality of depiction in nuclear medicine - positron emission tomography (PET) and on the hybrid depiction by a combined method, positron emission/computerized tomography (PET/CT).

        Key words: positron emission tomography - PET - computerized tomography - CT - fluorodeoxyglucose - FDG - oncology - diagnostics.