Positron emission tomography (PET) is a method for taking pictures of disease inside sick person’s body, without having to cut them open. In PET imaging, radioactive chemical called radiotracer injected into patient. All radiotracers have two main parts: part that targets the disease, and an unstable atom (radioisotope) emits positive electrons (positrons) as it breaks down (decays). When posit...

Natural Cu target was irradiated with proton beam in the energy range of 15 to 30 MeV at a beam current of 100 μA for 15 min. In this irradiation radioisotope of 62Zn was produced as a generator and then decayed to Cu radioisotope. The Cu is emitting β+ and known as PET radioisotope. Excitation function of Cu via Cu (p, 2n) Zn, Cu and Cu (d, 3n) Zn reactions were calculated using Alice and Taly...

introduction: gastric drainage disorder is one of the complications of gastric pull-up and esophagectomy after surgery which might lead to esophageal cancer and benign strictures. the aim of this study was to determine the role of pyloromyotomy on gastric drainage. materials and methods: in this prospective randomized controlled clinical trial study, we studied 51 patients in two matched groups...