Background: Reliable estimation of radiation-absorbed dose is necessary to evaluate the benefits and the risks of radiopharmaceuticals used for diagnostic or therapeutic purposes in nuclear medicine. Materiel and Methods: This study included 47 patients treated with iodine-131 for Graves’ disease. A comparative study between Geant4 Monte Carlo simulation and MIRD formalism was carried out to ev...

Introduction: The purpose of this study was to estimate the secondary cancer risk of thyroid for standard radiotherapy methods which are commonly used for breast cancer patients. Materials and Methods: Sixty-four breast cancer patients (their age range was around 50 years old) who referred to Seyed- Al- Shohada hospital (Isfahan, Iran) were included in this ...

background:  this study presents patient specific and organ dose estimation in computed tomography (ct) imaging of thorax directly from patient ct image using monte carlo simulation.  patient's ct image is considered as the patient specific phantom and the best representative of patient physical index in order to calculate specific organ dose. materials and methods: egsnrc /beamnrc monte c...

Background:  The aim of the study was to estimate the radiation dose during emergency exposure to patients treated with iodine-131 during the isolation period. Materials and Methods: The dose rate from a sample of 192 patients administrated by three different radioactivity of 131I (3.7, 5.55 and 7.4 GBq) was measured, at 1 meter after 1, 24 and 48 hours post dose administration, at three d...

Background: The present study intended to determine and report patient effective dose on the basis of patients and exposure data. Materials and methods: A nationwide computed tomography (CT) survey was provided as a report of patient doses in 2015-2016. Scan details were collected for nearly 2,000 adults and children in four age groups subjected to CT examinations. From total 565 CT scanners in...

objectives: the present study aimed to provide an estimation of the current financial burden of renal transplantation therapy for insurance organisations.methods: an excel-based model was developed to determine the treatment costs of current clinical practice in renal transplantation therapy (rtt). inputs were derived from ministry of health and insurance organizations` database, hospital and p...

emergency departments (eds) are the most challenging ward with respect to patient delay. the goal of this study is to present strategies that have proven to reduce delay and overcrowding in eds. in this review article, initial electronic database search resulted in a total of 1006 articles. thirty articles were included after reviewing full texts. inclusion criteria were assessments of real pat...

introduction: patient safety culture is an important part of improvement in the safety of health care. knowing its present status is required for development of safety culture. the present study aimed to evaluate the current status of patient safety culture in hospitals of three central provinces of iran. method: the present cross-sectional study was performed in teaching hospitals of tehran, a...