聚酯发泡胶联合热塑膜在直肠癌放射治疗中的应用研究  

Application of polyester foam adhesive combined with thermoplastic film in radiotherapy for rectal cancer

作　　者：胡道坤 邓源 Hu Daokun;Deng Yuan(Department of Radiotherapy,Nanfang Hospital,Southern Medical University,Guangzhou 510515,China)

机构地区：[1]南方医科大学南方医院放疗科,广州510515

出　　处：《现代仪器与医疗》2024年第5期58-61,共4页Modern Instruments & Medical Treatment

基　　金：广东省医学会医学工程学分会青年委员会基金(2022-GDMAYB-05)。

摘　　要：目的探讨聚酯发泡胶联合热塑膜在直肠癌放射治疗中的临床应用价值。方法选取2022年6月-2022年12月在南方医院放疗科接受放疗的直肠癌患者80例,随机平均分A组和B组,A组的患者固定方式采用聚酯发泡胶联合热塑膜固定,B组的患者固定方式采用真空垫固定。在第一周前3次治疗前和后续每周1次进行锥形束CT(cone beamCT,CBCT)扫描,通过影像匹配系统采用软组织配准和人工校对,与计划重建图像进行比较两组左右、头脚、腹背方向的摆位误差。结果聚酯发泡胶联合热塑膜固定组在三个方向上的误差比真空垫固定组要好,三个方向差异均有统计学意义(P<0.05)。结论直肠癌患者需要放疗时采用聚酯发泡胶联合热塑膜固定优于单纯的真空垫固定,重复性好,减少了摆位误差,摆位精度得到明显的提升。对于临床治疗有一定的参考意义。Objective Exploring the clinical application value of polyester foam adhesive combined with thermoplastic film in radiotherapy for rectal cancer.Methods Select 80 colorectal cancer patients who received radiotherapy in the Radiation Oncology Department of Southern Hospital from June 2022 to December 2022,and randomly divide them into Group A and Group B.The patients in Group A were fi xed using polyurethane foam adhesive combined with a heat-shrinkable film,while the patients in Group B were fixed using a vacuum pad.Perform cone beam CT(CBCT)scans on the patients in both groups before the first three treatments of the first week and once a week thereafter.Use an imaging matching system to perform soft tissue registration and manual correction,and compare the positioning errors in the lateral,head-foot,and dorsal-ventral directions between the two groups using the planned reconstructed images.Results The combined polyurethane foam and thermoplastic film fixation group had better errors in three directions than the vacuum cushion fixation group,with statistically signifi cant diff erences in all three directions(P<0.05).Conclusion When rectal cancer patients require radiotherapy,the use of polyester foam adhesive combined with thermoplastic film fixation is superior to simple vacuum pad fi xation,with good repeatability,reduced positioning errors,and signifi cantly improved positioning accuracy.It has certain reference signifi cance for clinical treatment.

关 键 词：直肠癌 真空垫 体位固定 发泡胶 摆位误差 

分 类 号：TH77[机械工程—仪器科学与技术] R197.32[机械工程—精密仪器及机械]