126台医用CT设备影像质量控制检测与结果分析  

Lmage Quality Control Test and Result Analysis of 126 Medical CT Equipment

作　　者：陈上文[1] 王明贵 CHEN Shangwen;WANG Minggui

机构地区：[1]广东省计量科学研究院,广东广州510000 [2]中山大学附属第三医院,广东广州510000

出　　处：《计量与测试技术》2020年第7期37-39,共3页Metrology & Measurement Technique

基　　金：广东省科技计划项目(项目编号:2015A020212017)。

摘　　要：目的:分析126台医用CT设备的性能与质量问题。方法:采用CT检测模体与辐射剂量仪等仪器对126台医用CT机器的CT值(水)、均匀性、噪声、高低对比分辨力等项目。结果:检测结果显示,CT机各项指标检测的合格率均高于85%以上,其中CT值、高对比分辨力、低对比分辨力检测结果均高于90%。结论:加强医用CT设备影像质量控制,可提高疾病诊断准确性,这对于保证医疗健康具有积极意义。Objective: to analyze the performance and quality of 126 medical CT equipment. Methods: the CT value( water),uniformity,noise,high and low contrast resolution of 126 medical CT machines were measured by CT phantom and radiation dosimeter. Results: the results showed that the qualified rate of CT was higher than 85%,and the CT value,high contrast resolution and low contrast resolution were higher than 90%. Conclusion: strengthening the image quality control of medical CT equipment can improve the accuracy of disease diagnosis,which is of positive significance to ensure medical health.

关 键 词：CT设备 影像质量 最低剂量阈值 

分 类 号：TB9[一般工业技术—计量学]