In the first part of this two-part article, the characteristics, potential uses, radiochemical purity and method of evaluating the activity of Tc99m will be discussed. In the second part of the article, the dosimetry of this radionuclide will be presented for various routes of administration as well as for various chem ical configurations, such as the pertechnetate ion, the colloid and the prot...

  Objective(s): In nuclear medicine studies, gallium-68 (68Ga) citrate has been recently known as a suitable infection agent in positron emission tomography (PET). In this study, by applying an in-house produced 68Ge/68Ga generator, a simple technique for the synthesis and quality control of 68Ga-citrate was introduced; followed by preliminary animal studies. Methods: 68GaCl3 eluted from the ge...

In many applications, the radionuclidic purity of a radioactive substance is crucial property. It involves, for example, production radiopharmaceuticals or reference standards used in metrology. However, identification admixtures not straightforward certain nuclides. The paper presents technique determination radionuclide impurities mixtures pure beta-emitting proposed method based on compariso...

OBJECTIVES In nuclear medicine studies, gallium-68 ((8)Ga) citrate has been recently known as a suitable infection agent in positron emission tomography (PET). In this study, by applying an in-house produced (68)Ge/(68)Ga generator, a simple technique for the synthesis and quality control of (68)Ga-citrate was introduced; followed by preliminary animal studies. METHODS (68)GaCl3 eluted from t...

Background: All human beings and living organisms are exposed to natural radiations on daily basis, which is mainly due to the activity concentration of primordial radionuclides 232Th, 238U and their products of decay together with the natural radionuclide 40K present in the earth’s crust. Materials and Methods: A total of 59 soil samples were collected around the banks and surroundings of the ...

A new isotope separator has been designed, constructed, and put into routine operation for separation of 133Xe providing a major advancement and significant cost reduction in preparation of this radioactive isotope. The design features and advantages are discussed that expedite high purity separation of relatively small quantities of this isotope. These advantages could be easily used to expedi...

Objective(s): Recently, bone-avid radiopharmaceuticals have been shown to have potential benefits for the treatment of widespread bone metastases. Although 177Lutriethylene tetramine hexa methylene phosphonic acid (abbreviated as 177Lu- TTHMP), as an agent for bone pain palliation, has been evaluated in previous studies, there are large discrepancies between the obtained results. In this study,...

objective(s): recently, bone-avid radiopharmaceuticals have been shown to have potential benefits for the treatment of widespread bone metastases. although 177lutriethylene tetramine hexa methylene phosphonic acid (abbreviated as 177lu- tthmp), as an agent for bone pain palliation, has been evaluated in previous studies, there are large discrepancies between the obtained results. in this study,...

In this work, the solubility dependence of radioactive baric samples under influence of microwave radiation (MWR) has been investigated at various concentrations of HCl after irradiation of BaO target at a flux of thermal neutrons. It is established that the use of MWR for dissolution of a sparingly-soluble barium oxide will accelerate a dissolution process at almost an order of magnitude in co...