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目的调查河北省内部分医院受检者X线诊断防护现状及受照剂量和不同等级医院X线检查阳性率水平。为医院采取辐射防护措施提供依据。方法受检者吸收剂量监测采用热释光方法进行,乳腺腺体平均剂量测量采用Victoreen NER-OTMmAx系统。结果所调查医院育龄妇女与儿童X线检查总防护率为35.8%,普通受检者X线摄影防护率较低,仅5.3%。X线摄影吸收剂量超标率为22.9%,育龄妇女骨盆前后位摄影检查剂量合格,乳腺平均腺体剂量超标17.5%。所调查10家三甲医院中有2家不能达到X线检查60%阳性率标准。结论河北省内医院目前医用诊断X线受检者的辐射防护存在较多问题。医院应加强医用X线诊断设备质量控制,降低受检者受照剂量。提高医院X线诊断阳性率,减少不必要的X线检查。
Objective To investigate the status of X-ray diagnosis and protection and the dose of X-ray examination and the positive rate of X-ray examination in different hospitals in some hospitals in Hebei province. For the hospital to provide radiation protection measures to provide the basis. Methods The dose absorbed by the subjects was measured by thermoluminescence method. The average dose of mammary gland was measured by Victoreen NER-OTMmAx system. Results The total protection rate of X-ray examination of women of childbearing age and children surveyed in the hospital was 35.8%. The X-ray protection rate of ordinary subjects was only 5.3%. X-ray absorption dose exceeded the rate of 22.9%, women of childbearing age before and after pelvic examination dose of qualified examination, the average breast gland dose exceeded 17.5%. Two of the 10 top three hospitals surveyed failed to meet the 60% positive rate for X-ray examination. Conclusion There are many problems in radiation protection of medical diagnostic X-ray in Hebei Province hospitals. The hospital should strengthen the medical X-ray diagnostic equipment quality control, reduce the subject dose. Improve the positive rate of hospital X-ray diagnosis, reduce unnecessary X-ray examination.