中国医疗设备2024，Vol.39Issue(6)：49-54,6.DOI:10.3969/j.issn.1674-1633.2024.06.008
体表定位线对鼻咽癌放射治疗的影响
Effect of Body Surface Positioning Line on Radiotherapy for Nasopharyngeal Carcinoma
牛颢清 1齐斌 1曾杰 1陈锦辉 1邹力 1雷耀良1
作者信息
- 1. 广州医科大学附属肿瘤医院 放射治疗科,广东 广州 510091
- 折叠
摘要
Abstract
Objective To investigate the effect of body surface positioning line on radiotherapy of nasopharyngeal carcinoma.Methods A total of 184 cases of nasopharyngeal carcinoma radiotherapy patients with two different fixation methods were selected as the study objects.Group A was fixed with U-shaped positioning membrane+polyurethane headrest,and group B was fixed with S-shaped positioning membrane+polyurethane foam positioning pad.CBCT scan was performed once a week to correct the position and record the positioning error.According to the presence or absence of the patient's body surface positioning line,they were recorded as A1/A0 group and B1/B0 group,respectively.Pairwise paired t-test was performed among the groups and compared according to different age groups.Results The setup errors of each group from small to large were B1 group,B0 group,A1 group and A0 group.The linear setup errors of A0 group and B1 group were(0.24±0.08),(0.33±0.15),(0.33±0.07)cm and(0.13±0.06),(0.16±0.07),(0.15±0.08)cm,respectively.The rotational setup errors were(1.60±0.60)°,(1.30±0.60)°,(1.50±0.70)° and(0.90±0.40)°,(0.80±0.40)°,(0.80±0.30)°,respectively.The overall setup error was statistically significant between B1 group and A0 group(P＜0.05).There was no significant difference in setup error between different age groups(P＞0.05).Conclusion The body surface positioning line combined with S-type positioning film+polyurethane foam positioning pad can improve the positioning accuracy of nasopharyngeal carcinoma radiotherapy target area,and has clinical practical significance.关键词
鼻咽癌/体表定位线/发泡胶/体位固定/摆位误差Key words
nasopharyngeal carcinoma/body surface positioning lines/polyurethane foam/position fixation/positioning error分类
医药卫生引用本文复制引用
牛颢清,齐斌,曾杰,陈锦辉,邹力,雷耀良..体表定位线对鼻咽癌放射治疗的影响[J].中国医疗设备,2024,39(6):49-54,6.
