【摘要】 目的了解乌鲁木齐市医疗机构的基本情况及其X射线诊断的医疗照射频度水平,为医疗辐射技术的合理化应用提供依据。方法采用普查的方式对乌鲁木齐市174家开展医用X射线诊断医疗机构进行调查分析。结果乌鲁木齐市常规X射线诊断检查频度为757. 7人次/千人口; CT检查频度为349人次/千人口; X射线其他类诊断为65. 6人次/千人口。三个不同年龄组间进行比较,0～15岁年龄组以胸部摄影居多,而> 40岁年龄组接受乳腺摄影频度高于其它两个年龄组。不同年龄组人群在接受X射线诊断检查频度中,高年龄组频度明显高于低年龄组。女性接受X射线诊断频度略高于男性受检人群。X射线诊断检查在0～15岁、15～40岁和> 40岁三组年龄组间两两相比差异均有统计学意义(χ~2=82. 6,P <0. 05;χ~2=134. 2,P <0. 05;χ~2=7. 15,P <0. 05)。结论 X射线诊断检查中,CT检查成为了仅次于X射线摄影检查的主要检查手段;不同年龄组间受检者接受X射线诊断检查频度不同,提示更应该关注高年龄组受检者照射频度。通过本次调查掌握了全市放射卫生学服务现况,填补了医疗照射频度分布数据的空白,为进一步开展医用辐射防护监督管理提供依据。更多还原

【Abstract】 Objective To understand the allocation of radiological diagnostic equipment and the frequency of medical radiation exposure in the medical institutions in Urumqi,in order to provide the basis for the reasonable application of medical radiation technology. Methods 174 medical X-ray diagnostic institutions in Urumqi were investigated and analyzed by means of general survey. Results The frequency of routine X-ray diagnostic examination in Urumqi was 757. 7 person-times per 1 000 population. The frequency of CT examination was 349 person-times per 1 000 population. And others X-ray diagnoses were65. 6 person-times per 1 000 population. Comparing the three different age groups,the majority of breast radiographs were taken in 0 ～ 15 years old group,while the frequency of mammography was greater in the group over 40 years of age than in the other two age groups. The frequency of X-ray diagnostic examination in different age groups was significantly higher in the older group than in the younger group. The frequency of female X-ray diagnosis was slightly higher than that of male’s. There were significant differences in X-ray diagnosis between the three age groupsof 0 ～ 15 year old、15 ～ 40 year old and more than40 year old( χ~2= 82. 6 P < 0. 05; χ~2= 134. 2 P < 0. 05; χ~2= 7. 15 P < 0. 05). Conclusion In X-ray diagnostic examination,the CT examination has become a major means second only to the X-ray photography examination. The frequency of X-ray diagnostic examination varies among different age groups,suggesting that more attention should be paid to the frequency of X-ray exposure in older age groups. Through this survey,the related regulatory authorities should strengthen the supervision and management of radiation protection in medical institutions,to ensure the justification of diagnostic radiology and radio therapy.更多还原