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目的 了解潍坊市医疗照射基本状况 ,为推动医疗照射防护工作的开展提供基础资料。方法 按全国“九五”期间医疗照射调查方案 ,实行统一调查表格 ,普查与抽样调查相结合 ,调查 1996年和 1998年的医疗照射基本状况。结果 (1)X射线诊断设备主要以 2 0 0mA以上的X射线机为主。 (2 ) 1996、1998年X射线诊断检查频率分别为 181 8和 193 6人次 /千人·年 ,医疗照射率分别为 14 16%和 13 88%。 (3 )X射线诊断医疗照射主要以摄影和透视为主 ,但其他特检、X -CT、介入放射学和磁共振检查有增长趋势。结论 X射线诊断设备得到改善 ,X射线诊断阳性率提高、检查频率较以往有所下降
Objective To understand the basic situation of medical radiation in Weifang City and provide basic information for promoting the medical radiation protection work. Methods According to the survey plan of medical radiation during the “Ninth Five-year” period in China, a unified survey form, a census and a sample survey were combined to investigate the basic status of medical exposure in 1996 and 1998. Results (1) X-ray diagnostic equipment is mainly dominated by X-ray machines with over 200mA. (2) The frequency of X-ray examination in 1996 and 1998 were 181 8 and 193 6 person-times a year respectively, and the medical exposure rates were 14 16% and 13 88% respectively. (3) X-ray diagnosis Medical exposure is mainly based on photography and fluoroscopy, but other special examination, X-CT, interventional radiology and magnetic resonance imaging have a growing trend. Conclusion X-ray diagnostic equipment has been improved, the positive rate of X-ray diagnosis increased, the examination frequency decreased from the past