天津市十家医院X射线诊断医疗照射频度调查结果分析

An analysis of medical X-ray examination frequency in ten hospitals in Tianjin,China

目的调查天津市10家医院的放射诊断设备应用频度,为全市医疗照射频度调查提供依据。方法于2017年7月,采用便利抽样抽取天津市10个区的10家医院作为调查对象,对2016年度医院的基本情况、放射诊断设备情况及其应用频次进行调查,并估算全市放射诊断检查频度。结果2016年度调查医院放射诊断检查应用频次共610 458人次,其中X射线摄影检查应用频次371 882人次,X射线CT检查应用频次238 576人次。调查样本中受检者男女比例较为平均,女性略高于男性;调查样本放射诊断受检者>40岁年龄组所占比例最高(65.53%);各类放射诊断检查应用频次主要集中在诊疗水平较高的三级医院和二级医院中;2016年度天津市X射线摄影检查频度估计值约为451人次/千人口,CT扫描检查频度估计值约为188人次/千人口。结论天津市10家医院的放射诊断照射频度水平相对较高,需进一步加强该市的医疗照射频度调查工作。

ObjectiveTo investigate the usage frequency of radiological diagnosis devices in ten hospitals in Tianjin, China, and to provide a basis for the survey of medical radiation frequency in Tianjin.MethodsTen hospitals from the ten districts in Tianjin were enrolled as subjects by a convenient sampling method. A survey was conducted to assess the general information and radiological diagnosis device information and usage frequency in those hospitals in 2016. The radiological examination frequency in Tianjin was estimated.ResultsA total of 610 458 patients received radiological examinations in the sampled hospitals in 2016. In those patients, 371 882 received X-ray examinations for imaging and 238 576 for computed tomography (CT);there were slightly more female patients than male patients, suggesting a relatively equal gender distribution;patients older than 40 years accounted for 65.53%, which was the highest among all the age groups. Different types of radiological diagnosis devices were mostly used in tertiary and secondary hospitals. In Tianjin, the estimated frequency of X-ray examination for imaging and CT scanning was 451 and 188 per thousand people, respectively, in 2016.ConclusionThe frequency of radiological diagnosis is relatively high in the ten hospitals in Tianjin. The investigation of medical radiation in Tianjin needs to be improved.