نتایج جستجو برای: radiation doses
تعداد نتایج: 334165 فیلتر نتایج به سال:
Introduction: The study of the cause of death during the last few decades has shown that death due to infectious diseases has been declining and has been rising due to noninvasive diseases, especially cancers and accidents. Cancer is considered as one of the fatal diseases, and every year, more than 10.9 million people worldwide are diagnosed with the disease. Mater...
Numerous studies have reported on cancers among Mayak Production Association (PA) nuclear workers. Other studies have reported on serious deterministic effects of large radiation doses for the same population. This study relates to deterministic effects (respiratory system dysfunction) in Mayak workers after relatively small chronic radiation doses (alpha plus gamma). Because cigarette smoke is...
OBJECTIVES The purpose of this study was to describe radiation exposure from cardiac imaging procedures over time in a general population. BACKGROUND Cardiac imaging procedures frequently expose patients to ionizing radiation, but their contribution to effective doses of radiation in the general population is unknown. METHODS We used administrative claims to identify cardiac imaging procedu...
Objective. To evaluate the effectiveness of radiation protective curtains in reducing the occupational radiation exposure of medical personnel. Methods. We studied medical staff members who had assisted in 80 consecutive therapeutic endoscopic retrograde cholangiopancreatography (ERCP) procedures. Use of radiation protective curtains mounted to the X-ray tube was determined randomly for each pr...
With respect to radiation damage to humans, it is important to seek possible radioprotectants to modify the normal response of biological systems to radiation-induced toxicity or lethality. For this reasons, the search for less-toxic radiation radioprotectants has spurred interest in the development of different compounds. The radioprotective effects of citrus extract were investigated by using...
With respect to radiation damage to humans, it is important to seek possible radioprotectants to modify the normal response of biological systems to radiation-induced toxicity or lethality. For this reasons, the search for less-toxic radiation radioprotectants has spurred interest in the development of different compounds. The radioprotective effects of citrus extract were investigated by using...
OBJECTIVE To understand the estimation of both the effective dose and the risk estimate associated with diagnostic ionizing radiation in sports medicine and to appreciate strategies by which this radiation exposure may be minimized. DESIGN Observational study. SETTING Sports medicine practice. PATIENTS A theoretical patient, athlete X (male, aged 20-29 years, 80 kg), was used to illustrat...
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