IGPS-O图像引导放疗定位系统联合计算机体层成像重建在头颈部肿瘤精准放疗中的价值

The Value of IGPS-O Image Guided Radiotherapy Localization System Combined with CT Reconstruction in Precise Radiotherapy for Head and Neck Tumors

目的:分析新型图像引导放疗定位系统IGPS-O联合计算机体层成像(CT)重建对头颈部肿瘤患者精准放疗的影响。方法:纳入2020年1月~2022年8月绍兴第二医院医共体总院诊治且进行调强放疗的患者60例为观察对象,在放疗中均应用IGPS-O定位系统及CT重建技术检查,分析其精准放疗效果。结果:联合技术在8、10、12、16mm时的摆位偏移配准误差率明显低于CT重建技术,校准效率时间短于CT重建技术,且联合技术配准校正后左右、头脚、腹背方向的肿瘤区-计划靶区(PTV)外放间距低于未校正前(P<0.05)。结论:IGPS-O联合CT重建可实现头颈部肿瘤患者精准放疗的目的,降低配准误差率。

Objective:To analyze the influence of the new image guided positioning system(IGPS)-O combined with CT reconstruction on the precision radiotherapy of patients with head and neck tumors.Methods:From January 2020 to August 2022,the General Hospital of the Medical Community of Shaoxing Second Hospital diagnosed and treated 60 patients who received intensity modulated radiation therapy.IGPS-O positioning system and CT reconstruction technology were used in the radiotherapy to analyze the effect of precision radiotherapy.Results:The positioning offset registration error rate of the joint technology at 8,10,12,and 16mm is significantly lower than that of CT reconstruction technology,and the calibration efficiency time is shorter than that of CT reconstruction technology.Moreover,after the joint technology registration correction,the distance between the tumor area and the planned target area(PTV)in the left and right,head and foot,and abdominal and dorsal directions is lower than before correction(P<0.05).Conclusion:IGPS-O image guided radiotherapy localization system combined with CT reconstruction can achieve the goal of accurate radiotherapy for patients with head and neck tumors,and reduce the registration error rate.