医用加速器光子线射野输出因子的自动化测量  

Automatic Measurement of Photon Beam Output Factor for Medical Accelerator

作　　者：李金凯 孙新臣 周苏民 孙向东[3] 马建新[4] 刘海[3] 吴扬 LI Jinkai;SUN Xinchen;ZHOU Sumin;SUN Xiangdong;MA Jianxin;LIU Hai;WU Yang(Department of Radiotherapy, The First Affiliated Hospital with Nanjing Medical University, Nanjing Jiangsu 210029, China;Department of Radiation Oncology, University of Nebraska Medical Center, Omaha NE68198, USA;Department of Radiotherapy, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing Jiangsu 210002, China;Department of Radiotherapy, Lianyungang Oriental Hospital, Lianyungang Jiangsu 222042, China)

机构地区：[1]南京医科大学第一附属医院放疗科,江苏南京210029 [2]内布拉斯加大学医学中心肿瘤放疗科,美国奥马哈ne68198 [3]南京中医药大学附属八一医院放疗科,江苏南京210002 [4]连云港市东方医院放疗科,江苏连云港222042

出　　处：《中国医疗设备》2018年第1期93-95,107,共4页China Medical Devices

摘　　要：目的实现加速器光子线射野输出因子的自动化测量。方法将射野输出因子测量序列导入Mosai Q系统,用它控制加速器的出束,PC Electrometer参考级剂量仪同步开启自动测量程序,测量完毕导出测量结果,利用公式完成OUF的自动测量。结果射野输出因子的数据采集实现了自动化测量,测量耗时较手动测量减少了约46%,自动测量与手动测量的结果差异无统计学意义(P>0.05)。结论射野输出因子的自动化测量可以在保证准确性的前提下,减少加速器测量耗时,值得临床广泛推广。Objective To develop the methods of measuring photon beam output factor for medical accelerator automatically.Methods The measuring sequence of beam output factor was imported to MosaiQ system,which managed the state of the accelerator“beam on”or“beam off”.The PC Electrometer reference dosimeter was turn on synchronously when the accelerator beam on,and the results were exported in excel format after the measurement.At last,the photon beam output factor was worked out using formula.Results The accelerator data collection of beam output factor was measured automatically,gainning time about46%,and the comparison of measuring result between manual set and automatic set had no statistical significance(P>0.05).Conclusion Automatic measurement of beam output factor could ensure quality and save time,which is worth to be popularized in clinical practice.

关 键 词：加速器 治疗计划系统 射野输出因子 自动化 数据采集 

分 类 号：R197.39[医药卫生—卫生事业管理]