background: image-guided radiotherapy used multiple imaging during the radiation therapy course to improve the precision and accuracy of health care provider's treatment. objectives: this study aims to assess the safety, effectiveness and economic aspects of image-guided radiation therapy for decision-making about this technology in iran. methods: in this study, the most important medical datab...

background: finding a suitable method for rapid, accurate and reliable estimation of absorbed dose has high priority in management of the radiation exposed persons. shortly after radiation exposure, apoptosis is a major detriment in proliferative tissues such as the hematopoietic system. therefore, quantification of apoptosis in these tissues could be useful for rapid estimation of radiation ex...

Introduction: Dental radiography as one of the most frequent type of radiological examinations is accepted for medical investigations due to their significant benefits nevertheless using ionizing radiation. It has lower radiation dose compared to another radiological examination but because of its high application for children, radiation dose needs attention. Based on affectin...

There is no place on the Earth, the planet we live on, where the natural background radiation level is zero. Since the birth and even in our fetal stage, we have been exposed to different sources of natural radiation. Life, in fact, evolved in a radiation environment that was much more harsh than today. Earth serves as a source of terrestrial radiation. Uranium, thorium, and radium are among th...

conclusions portable radiological examinations did not expose healthcare providers to high doses of ionizing radiation. nurses’ radiation protection knowledge was limited and hence, they require in-service education programs. results the mean of participants’ radiation protection knowledge was 4.77 ± 1.38. the most prevalent radiation protection behavior of nurses was leaving the intensive care...

conclusions the effective annual dose of interventionists who work in center 1 and 2 was 143.08 and 1226.78 msv respectively. the high radiation dose which delivers to the leg of physicians in center 2 can be an important cause of radiation dermatitis occurred on the leg of our interventionist. patient dose during most of the procedures was less than the threshold dose for occurring erythema bu...

background: the use of the ionizing radiation in the medical practice has evolved since its beginnings. their benefit for the patient is considerable in term of comfort, diagnostic and therapeutic effectiveness. it is estimated that 30% to 50% of critical decisions in medical approaches is based on x-ray examination. using the x-ray as a diagnostic means by clinicians requires appropriate and a...

introduction natural and artificial radionuclides are the main sources of human radiation exposure, which enter the food chain from the environment. radionuclides can affect human health by transferring from soil to plants and entering the human body. in this research study, we aimed to determine the activity concentrations of radionuclides and calculate the average annual committed effective d...