正常体质量与超体质量乳腺癌患者改良根治术后不同固定方式放射治疗摆位误差分析  

Positioning Errors Analysis of Radiation Therapy with Different Fixation Methods after Modified Radical Mastectomy in Normal Weight and Overweight Breast Cancer Patients

作　　者：薛万桂 陈君 陈舒影 邱玲娜 吴建东[1,2,3] 黄伟康 郭飞宝 XUE Wangui;CHEN Jun;CHEN Shuying;QIU Lingna;WU Jiandong;HUANG Weikang;GUO Feibao(Department of Radiotherapy,Cancer Center,The First Affiliated Hospital of Fujian Medical University,Fuzhou 350005,China;Department of Radiotherapy,National Regional Medical Center,Binhai Campus of the First Affliated Hospital,Fujian Medical University,Fuzhou 350212,China;School of Medical lmaging,Fujian Medical University,Fuzhou 350122,China;Key Laboratory of Radiation Biology of Fujian Higher Education Institutions,The First Affiliated Hospital of Fujian Medical University,Fuzhou 350005,China)

机构地区：[1]福建医科大学附属第一医院肿瘤中心放疗科,福州350005 [2]福建医科大学附属第一医院滨海院区国家区域医疗中心放疗科,福州350212 [3]福建医科大学医学影像学院,福州350122 [4]放射生物福建省高等学校重点实验室,福州350005

出　　处：《福建医科大学学报》2024年第4期250-255,262,共7页Journal of Fujian Medical University

摘　　要：目的探讨正常体质量和超体质量乳腺癌患者使用乳腺托架和一体化体架2种不同固定方式对分次放射治疗(放疗)摆位误差的影响。方法回顾性分析2021年8月-2022年8月86例行乳腺癌改良根治术后接受放疗的乳腺癌患者的临床资料,其中使用乳腺托架的正常体质量和超体质量患者各15例,使用一体化体架的正常体质量和超体质量患者各28例,记录患者在X、Y和Z轴方向上的5组分次间定位数据,分析正常体质量与超体质量患者使用2种不同固定方式的分次摆位误差。结果(1)正常体质量和超体质量患者使用乳腺托架和一体化体架的摆位误差比较,仅有正常体质量患者在Z方向上摆位误差的差别有统计学意义(P=0.021),其他方向上摆位误差的差别均无统计学意义(P>0.05)。(2)正常体质量患者使用乳腺托架时,在Z方向上的第1次摆位误差大于其他分次;在使用一体化体架时,在Y方向和Z方向上的第1次摆位误差大于其他分次,差别均有统计学意义(P<0.05)。(3)超体质量患者使用乳腺托架时,在Y方向上的第1次摆位误差大于其他分次,差别均有统计学意义(P<0.05);在使用一体化体架时,在X、Y和Z方向第1次摆位误差均大于其他分次,Z方向首次摆位误差与其他分次间的差别有统计学意义(P<0.05)。结论一体化体架可以在一定程度上代替乳腺托架以减少时间成本,但乳腺托架具有较小的分次间误差。对超体质量患者推荐使用乳腺托架。Objective To investigate the effect of two different fixation methods,breast bracket and integrated body frame,on the positioning errors of fractionated radiotherapy in normal weight and overweight breast cancer patients.Methods Clinical data of 86 breast cancer patients who received radiotherapy after modified radical mastectomy from August 2021 to August 2022 were retrospectively analyzed.Among them,there were 15 normal weight and overweight patients each using breast brackets,and 28 normal weight and overweight patients each using integrated body frames.5 sets of intersegmental localization data of the patients in the X-,Y-,and Z-axis directions were recorded,and the segmental positioning errors of the normal weight and overweight patients using the two different fixation modes were analyzed.Results(1)Comparison of the positioning errors between normal weight and overweight patients using breast brackets and integrated body frames showed that the difference in positioning errors in the Z direction was statistically significant only for normal weight patients(P=0.021),while the difference in positioning errors in all other directions was not statistically significant(P>0.05).(2)In normal weight patients,the error of the 1st placement in the Z direction was greater than the other subdirections when using the breast bracket,and the error of the 1st placement in the Y and Z directions was greater than the other subdirections when using the integrated body frame,and the differences were statistically significant(P<0.05).(3)When using breast braces in overweightpatients,the 1st placement error in the Y direction was greater than the other divisions,and the difference was statistically significant(P<0.05);when using the integrated body frame,the 1st placement error in the X,Y,and Z directions was greater than the other divisions,and the difference between the first placement error in the Z direction and the other divisions was statistically significant(P<0.05).Conclusion The integrated body frame can be used in place

关 键 词：乳腺癌 乳腺托架 一体化体架 摆位误差 

分 类 号：R737.9[医药卫生—肿瘤]