智能放疗云平台自动勾画宫颈癌患者膀胱结构的应用研究

Research on the Application of Automatic Contouring of the Bladder Structure of Patients with Cervical Cancer by the Intelligent Radiotherapy Cloud Platform

目的:测试并评估自动轮廓勾画软件智能放疗云平台(RAIC.OIS)在宫颈癌患者膀胱结构自动勾画中的应用。方法:选取2017年7月至2019年7月收治的30例宫颈癌患者进行研究。通过比较自动勾画和手工勾画膀胱结构的体积差异(△V%)、位置差异(DC)、形状一致性(DSC,SI,IncI)和勾画时间,评估RAIC.OIS自动勾画工具应用于膀胱自动勾画的可行性和准确性。结果:根据测试结果,自动和手工两种方式勾画宫颈癌患者膀胱结构的体积差异为(3.00±8.31)%,质心偏差为(0.30±0.07)cm,DSC值为0.91±0.03,SI为0.92±0.02,Inc I为0.90±0.06,自动勾画平均时间约为4.4s。结论:RAIC.OIS的自动勾画工具,对宫颈癌患者的膀胱结构能达到满意的自动勾画结果,可大大缩短临床医师用于膀胱结构的手工勾画时间,提高放疗工作效率。

Objective: To test and evaluate the application of Intelligent Radiotherapy Cloud Platform(RAIC.OIS), an automatic contouring software, in the automatic contouring of the bladder structure of patients with cervical cancer. Methods: 30 patients with cervical cancer received from July 2017 to July 2019 are selected for the study. By comparing the volume difference(△V%), position difference(DC), shape consistency(DSC, SI, IncI) and contouring time of bladder structure automatically and manually contoured, the feasibility and accuracy of the application of automatic contouring tool RAIC.OIS in the automatic contouring of bladder are evaluated. Results: According to the test results, the volume difference of bladder structure of patients with cervical cancer automatically and manually contoured is(3.00±8.31)%, the deviation of center of mass is(0.30±0.07)cm, DSC value is 0.91±0.03, SI is 0.92±0.02, IncI is 0.90±0.06, and the average time of automatic contouring is about 4.4 s. Conclusion: The automatic contouring tool of RAIC.OIS can achieve satisfactory results of contouring of the bladder structure of patients with cervical cancer, greatly reduce the manual contouring time of bladder structure of clinicians, and improve the work efficiency of radiotherapy.