[1]黄新阳,周俊东,吴传锋,等.基于红外定位系统的放疗摆位偏差预警系统对头颈肩膜形变的分析与研究[J].中国医学物理学杂志,2022,39(4):421-425.[doi:DOI:10.3969/j.issn.1005-202X.2022.04.005]
　HUANG Xinyang,ZHOU Jundong,WU Chuanfeng,et al.Analyzing the deformation of head-neck-shoulder thermoplastic mask by OPS-based early warning system for setup errors in radiotherapy[J].Chinese Journal of Medical Physics,2022,39(4):421-425.[doi:DOI:10.3969/j.issn.1005-202X.2022.04.005]
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基于红外定位系统的放疗摆位偏差预警系统对头颈肩膜形变的分析与研究()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
39卷
期数:
2022年第4期
页码:
421-425
栏目:
医学放射物理
出版日期:
2022-04-27

文章信息/Info

Title:
Analyzing the deformation of head-neck-shoulder thermoplastic mask by OPS-based early warning system for setup errors in radiotherapy
文章编号:
1005-202X（2022）04-0421-05
作者:
黄新阳1; 周俊东2; 吴传锋2; 褚耀华2; 胡睿2; 葛云1
1.南京大学电子科学与工程学院， 江苏 南京 210046； 2.苏州市立医院， 江苏 苏州 215000
Author(s):
HUANG Xinyang1;  ZHOU Jundong2;  WU Chuanfeng2;  CHU Yaohua2;  HU Rui2;  GE Yun1
1. School of Electronic Science and Engineering, Nanjing University, Nanjing 210046, China 2. Suzhou Municipal Hospital, Suzhou 215000, China
关键词:
放疗; 红外定位系统; 放疗摆位偏差预警系统; 热塑膜; 变形; 摆位误差; 头颈部肿瘤
Keywords:
Keywords: radiotherapy optical positioning systemearly warning system for setup errors in radiotherapy thermoplastic mask deformation setup error head and neck tumors
分类号:
R811
DOI:
DOI:10.3969/j.issn.1005-202X.2022.04.005
文献标志码:
A
摘要:
目的：通过对放疗红外定位系统（OPS）在摆位期间采集的膜球变形度等数据进行分析，研究头颈肩膜的变形程度。方法：随机选取头颈部癌症患者23例，使用头颈肩热塑膜固定体位。通过使用OPS对膜上的6个定位球进行实时监测，记录摆位期间的各个膜球变形程度。当膜球变形度偏差值小于1.0 mm，则认定膜球变形度在正常范围内，不影响摆位精度。结果：6个定位球偏差在1.0 mm内的占比分别为70.3%、62.0%、57.4%、61.8%、70.5%、65.5%。结论：基于OPS系统的放疗摆位偏差预警系统能实时监测到膜是否发生形变，实验结果显示头颈肩膜形变的发生概率较大，影响了摆位精准度。该预警系统通过及时发现膜的形变程度，有效提高放疗摆位精准度，具有较强的临床价值。
Abstract:
Abstract: Objective To study the deformation degree of head-neck-shoulder thermoplastic mask by analyzing the data such as the deformation degrees of membrane balls collected by optical positioning system (OPS) during positioning. Methods Twenty-three patients with head and neck cancer were randomly enrolled in the study. All the patients were immobilized with head-neck-shoulder thermoplastic mask. OPS was used to monitor the 6 positioning balls on the thermoplastic mask in real time, and the deformation degree of each membrane ball during positioning was recorded. When the deviation of the deformation of the membrane ball was less than 1.0 mm, it was deemed to be within the normal range and did not affect the positioning accuracy. Results The proportions of the deviations of the 6 positioning balls within 1.0 mm were 70.3%, 62.0%, 57.4%, 61.8%, 70.5% and 65.5% respectively. Conclusion OPS-based early warning system for setup errors in radiotherapy can monitor whether the thermoplastic mask is deformed in real time. The experimental results reveal that the occurrence of thermoplastic mask deformation is relatively high, which affects the positioning accuracy.The early warning system can effectively improve the accuracy of radiotherapy positioning by detecting the deformation of thermoplastic mask in time, with high clinical value.

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备注/Memo

备注/Memo:
【收稿日期】2021-12-16 【基金项目】南京医科大学科技发展基金一般项目（NMUB2020271）；姑苏卫生人才计划人才科研项目（GSWS2020063） 【作者简介】黄新阳，硕士，研究方向：医学影像物理，E-mail: huangxy_ yellow@163.com 【通信作者】吴传锋，E-mail: wuchuanfeng.2008@163.com
更新日期/Last Update: 2022-04-27