绵竹市2016年X射线诊断照射频次调查分析

目的 了解该市X射线诊断设备照射频率及分布情况，为规范医疗照射管理及放射卫生防护提供建议。方法 普查全市所有临床放射诊疗机构的放射诊疗频次，并经统计学数据处理分析。结果 该市2016年医师数量为5.07人/千人口；2016年照射频率为510.67人次/千人口，其中男性年度照射频率为543.89人次/千人口、女性年度照射频率为477.63人次/千人口；摄影、X-CT、胸部透视、牙片、乳腺CR、介入、胃肠透视分别占74.89%、17.46%、4.40%、2.15%、0.48%、0.36%、0.26%；各部位的摄影、X-CT在不同性别及不同年龄段分布的差异有统计学意义；在年度放射诊疗频次分布中，三级医院84 289人次（32.68%），二级医院85 574人次（33.18%），其他类88 061人次（34.14%）。结论 通过调查，该市城乡居民当年度的放射诊疗频次属于Ⅱ级医疗保健水平、高于世界平均水平、高于近年国内相关报道水平，但频次在各放射检查类别的分布中合理性显得较差。

Investigation and analysis of frequency of X ray diagnostic exposure in Mianzhu in 2016

Objective Collecting information about the distribution and frequency of usage of X-ray diagnostic equipment in the city to provide suggestions for the standardization of medical radiation management and radiation protection.Methods Statistical analysis of data about the frequency of radiological diagnosis and treatment in all hospitals in the city.Results The number of physicians of the city is 5.07/1000 in 2016; frequency of radiological diagnosis and treatment is 510.67/1000, of which male is 543.89/1000and female is 477.63/1000. The percentage of photography、X-CT、chest X-ray radiograph、dental、mammary gland CR、interventional operation and gastrointestinal fluoroscopy are 74.89%、17.46%、4.40%、2.15%、0.48%, 0.36% and 0.26% respectively; differences of distribution of photography and X-CT on each part between genders, as well as among ages, were statistically significant. In 2016, the number of radiological diagnosis and treatment in Level Three hospitals is 84289 (32.68%), Level Two hospitals is 85574 (33.18%), and the remaining is 88061 (34.14%).Conclusion The annual frequency of radiological diagnosis and treatment in this city belongs to level Ⅱ health care level. This frequency is higher than average level of the world, and is also higher than what had been reported in China in recent years. However, the frequency distribution of different radiological diagnosis and treatment appears not rational.