نتایج جستجو برای: ray radiation protection
تعداد نتایج: 683914 فیلتر نتایج به سال:
Background: Lead-based radiation shields are widely used in radiology departments to protect both workers and patients from any unnecessary exposure to ionizing radiation. Recently there has been a great deal of concern expressed about the toxicity of lead. Human lead toxicity is well documented. In that light, production of environmentally-friendly lead-free radiation shields with less weight ...
background: in recent decades many guidelines has been conducted by radiation protection organizations about radiation protection in dentistry. this study aimed to evaluate the observance of these guidelines in educational clinics of all dental schools in iran. material and methods: in this cross-sectional study a self-administered questionnaire, based on national radiation protection board (nr...
background and aims. pregnant women often do not receive proper dental care in emergency visits due to a lack of awareness of the effect of radiation doses and the involved risks for the fetus. the aim of the present study was to assess the awareness of general dentists practicing in tabriz, iran, of the risks involved during exposure to diagnostic dental radiation in pregnant women. materials ...
background and aims. the aim of this study was to evaluate x-ray protection methods in dental offices in tabriz. materials and methods. in this study 142 dental offices were evaluated. a questionnaire-based method was used. the data was analyzed by descriptive methods. results. the least commonly used methods were leaded walls (4.9%) and film badges (16.9%) and the most commonly used methods we...
background: the aim of this study was to investigate clinical applications of mobile c-arms and consequent radiation risk,to increase medical attention on radiation protection, and to provide basic data for safe radiation use in the operating room. materials and methods: in this study, a total of 374 surgical operations, conducted using a portable fluoroscopic x-ray system from january to march...
Introduction: Diagnostic reference level (DRL) is a useful tool for the promotion of optimization. The national DRLs (NDRLs) are useful, brief, and robust guidelines for optimizing radiation protection in a country. The aim of this study was to extract the local DRLs (LDRLs) for some common radiologic examination in Sabzevar county. Materials and Methods: There are eight radiology departments ...
IntroductionA fine balance of image quality and radiation dose can be achieved by optimization to minimize stochastic and deterministic effects. This study aimed in ensuring that images of acceptable quality for common radiographic examinations in digital imaging were produced without causing harmful effects. Materials and MethodsThe study was conducted in three phases. The pre-optimization inv...
INTRODUCTION The recent progress in medical technology causes the decreases in the mortality rate of neonates with their birth weight less than 1,000g. Many X-ray examinations of neonates in NICU are usually done for various body size. The Frequencies of radiation exposure per neonate are high compared to general diagnosis for adults. It is important for radiation protection to consider that th...
Introduction: Radiation exposure during radiological examination is a health concern, of which radiology professionals should be cognizant. We sought to evaluate the radiation protection knowledge, attitudes, and practice (KAP) amongst radiology staff of hospitals across 10 provinces of Iran. Materials and Methods: For evaluating the level of radiation protection KAP, 553 radiology staff were e...
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