Annually, many people are irradiated for diagnostic and therapeutic purposes. Assessment of radiation dose and its related risks to patients are important issues in radiation protection dosimetry. The complex mathematical calculations of the absorbed and effective doses are now done with computers. The calculations are performed with the help of anthropomorphic computational models of human bod...

the production and application of pet tracers has been a unique step in the progress of nuclear medicine in last two decades. the most important pet tracers include f-18, c-11 and n-13 radioisotopes and many nuclear medicine centers throughout the globe are using them. however some new tracers are under their way to the mass administration, currently being in the clinical trials or preliminary ...

introduction: scattered photon is one of the main defects that degrade the quality and quantitative accuracy of nuclear medicine images. accurate estimation of scatter in projection data of spect is computationally extremely demanding for activity distribution in uniform and non-uniform dense media. methods: the objective of this paper is to develop and validate a scatter correction technique ...

thyroid nodules are common, occurring in almost two-thirds of some populations; among these only about 7% are malignant. the most important question with any new discovered thyroid nodule is, “is this malignant?” the main arbiter of malignancy or benignity remains fine needle aspiration and the mainstay of treatment surgery. but given the resources involved, doing an fnac or surgery in every di...

background: various variance reduction techniques such as forced detection (fd) have been implemented in monte carlo (mc) simulation of nuclear medicine in an effort to decrease the simulation time while keeping accuracy. however most of these techniques still result in very long mc simulation times for being implemented into routine use. materials and methods: convolution-based forced detectio...

Although assessing myocardial viability is a common cardiology practice, many physicians question the results of diagnostic methods. Nuclear medicine plays an important role in studies, but reports require interpretation clinical and pathophysiological context. this article was aimed at reviewing origin evolution viability. Here we present methods by emphasizing nuclear provide functional expla...

BACKGROUND A national survey of patient exposure from nuclear medicine diagnostic procedures was performed by Slovenian Radiation Protection Administration in order to estimate their contribution to the collective effective dose to the population of Slovenia. METHODS A set of 36 examinations with the highest contributions to the collective effective dose was identified. Data about frequencies...

AIM OF THE STUDY To evaluate the role of nuclear medicine techniques in the management of patients with thymoma. MATERIALS AND METHODS The Authors performed a review of the literature about the usefulness of traditional nuclear medicine and positron emission tomography in patients with thymic tumours. RESULTS AND DISCUSSION Nuclear medicine imaging can provide additional information in case...

Introduction: In the current study, we compared the h-indices of Web of Science (WOS), SCOPUS, and GS of the Iranian nuclear medicine scientists Methods: Full time members of two major nuclear medicine research centers of Iran with more than 5 year of experience (Nuclear Medicine Research Center of Mashhad University of Medical Sciences, and Research Institute for Nuclear Medicine of Tehran Un...