| 乳腺癌患者体重指数及体位固定方式对保乳术后调强放射治疗摆位误差的影响 |
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| 引用本文： | 陈嘉一,白彦灵.乳腺癌患者体重指数及体位固定方式对保乳术后调强放射治疗摆位误差的影响[J].实用肿瘤学杂志,2022,36(4):327-331. |
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| 作者姓名： | 陈嘉一 白彦灵 |
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| 作者单位： | 哈尔滨医科大学附属肿瘤医院放射物理科(哈尔滨 150081) |
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| 摘 要： | 目的 探讨乳腺癌保乳术后调强放疗中不同体重指数(Body mass index,BMI)患者体位固定方式与摆位误差的相关性。方法 回顾性分析接受调强放疗的117例保乳术后乳腺癌患者的临床资料。根据放疗时患者不同的体位固定方式分为A、B两组,A组患者(57例)为真空袋组,B组患者(60例)为乳腺托架组。根据患者的BMI指数分为1组(＜18.5 kg/m2)、2组(18.5~23.9 kg/m2)、3组(24~27.9 kg/m2)和4组(≥28 kg/m2)。比较不同BMI分组的乳腺癌患者体位固定方式与摆位误差的关系。结果 A组患者左右方向(X轴)总摆位误差小于B组(P＜0.05);A3、A4组患者X及Y轴摆位误差小于B3、B4组(P＜0.05)。在前后方向(Z轴)上,A组和B组之间的差异均无统计学意义(P＞0.05)。结论 保乳术后接受调强放射治疗的乳腺癌患者BMI指数对摆位误差具有影响,对于超重患者(BMI≥24 kg/m2)更宜选用真空袋固定方式。
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| 关 键 词： | 乳腺癌 体重指数 体位固定方式 摆位误差 |
| 收稿时间： | 2022-02-17 |
The influence of body mass index and body position fixation in breast cancer patients post-operative intensity modulated radiation therapy setup error |
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| CHEN Jiayi,BAI Yanling.The influence of body mass index and body position fixation in breast cancer patients post-operative intensity modulated radiation therapy setup error[J].Journal of Practical Oncology,2022,36(4):327-331. |
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| Authors: | CHEN Jiayi BAI Yanling |
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| Affiliation: | Department of Radiation Physics,Harbin Medical University Cancer Hospital,Harbin 150081,China |
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| Abstract: | Objective The aim of this study was to investigate the correlation between postural fixation and setup error in patients with different body mass index(BMI)during intensity-modulated radiotherapy after breast conserving surgery for breast cancer.Methods The clinical data of 117 patients with breast cancer after breast conserving surgery who received intensity modulated radiotherapy were retrospectively analyzed.The patients were divided into two groups A and B according to different body positions during radiotherapy.The patients in the group A(57 cases)were the vacuum bag group,and the patients in the group B patients(60 cases)were in the breast bracket group.According to the BMI index,patients were divided into group 1(＜18.5 kg/m2),group 2(18.5-23.9 kg/m2),group 3(24.0-27.9 kg/m2)and group 4(≥28 kg/m2).Results The positioning errors in the left and right(X-axis)and head-to-foot(Y-axis)directions of patients in the group A were smaller than those in the group B(P＜0.05).The positioning errors in X and Y directions of patients in the A3,A4 group were smaller than those in the B3,B4 group(P＜0.05).In the anterior-posterior direction(Z axis),there was no significant difference between the group A and group B(P＞0.05).Conclusion The BMI index of breast cancer patients receiving intensity-modulated radiation therapy after breast conserving surgery has an effect on the positioning error.The overweight patients(BMI≥24 kg/m2),vacuum bag fixation is more suitable. |
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| Keywords: | Breast cancer Body mass index Body position fixation Setup error |
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