[1]陈黎,白龙,李光俊,等.光学表面成像系统实时运动监测精度研究[J].中国医学物理学杂志,2021,38(9):1053-1056.[doi:10.3969/j.issn.1005-202X.2021.09.001]
　CHEN Li,BAI Long,et al.Real-time motion tracking accuracy of optical surface imaging system[J].Chinese Journal of Medical Physics,2021,38(9):1053-1056.[doi:10.3969/j.issn.1005-202X.2021.09.001]
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光学表面成像系统实时运动监测精度研究()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
38卷
期数:
2021年第9期
页码:
1053-1056
栏目:
医学放射物理
出版日期:
2021-09-26

文章信息/Info

Title:
Real-time motion tracking accuracy of optical surface imaging system
文章编号:
1005-202X（2021）09-1053-04
作者:
陈黎1; 2; 白龙1; 李光俊1; 全红2; 柏森1
1. 四川大学华西医院肿瘤中心放疗科，四川成都610041；2. 武汉大学物理科学与技术学院，湖北武汉430072
Author(s):
CHEN Li1;  2;  BAI Long1;  LI Guangjun1;  QUAN Hong2;  BAI Sen1
1. Department of Radiation Oncology, Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China 2. School of Physics and Technology, Wuhan University, Wuhan 430072, China
关键词:
光学表面成像系统; 呼吸运动; 监测精度
Keywords:
optical surface imaging system respiratory motion tracking accuracy
分类号:
R318；R815.6
DOI:
10.3969/j.issn.1005-202X.2021.09.001
文献标志码:
A
摘要:
目的：探究光学表面成像系统实时运动监测的精度。方法：将30例患者的呼吸曲线输入到模体中模拟呼吸运动， 同时利用Catalyst系统对模体进行实时运动监测，比较系统监测的呼吸曲线与参考曲线，从而得到光学表面成像系统实时 运动监测的精度。结果：光学表面成像系统监测的呼吸曲线与参考曲线具有较高的一致性，相关系数均大于0.99，显著相 关。监测误差的平均值为（0.24±0.04）mm，并且随着呼吸信号频率的增加而减小。结论：光学表面成像系统的实时运动 监测精度较高，可用于对患者呼吸运动的监测。在进行呼吸门控治疗时，应考虑呼吸监测系统引入的误差。
Abstract:
Objective To explore the accuracy of real-time motion tracking using optical surface imaging system. Methods The respiratory curves of 30 patients were input into a phantom for simulating respiratory motion, and Catalyst system was used for tracking the real-time motion of the phantom. The respiratory curves recorded by the system were compared with the reference curves, thereby obtaining the real-time motion tracking accuracy of optical surface imaging system. Results The respiratory curves recorded by the system had a high consistency with the reference curves, and the correlation coefficient was higher than 0.99, indicating significant correlation. The average of tracking errors was (0.24±0.04) mm, and the error was decreased while the respiratory signal frequency was increased. Conclusion The optical surface imaging system which has a relatively high real-time respiratory motion tracking accuracy can be used for respiratory motion tracking. During respiratory gating treatment, the error introduced by the respiratory motion tracking system should be considered.

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备注/Memo

备注/Memo:
【收稿日期】2021-03-20 【基金项目】国家自然科学基金（81472807） 【作者简介】陈黎，硕士，助理工程师，研究方向：放射治疗学，E-mail: 1084856667@qq.com 【通信作者】李光俊，E-mail: gjnick829@sina.com
更新日期/Last Update: 2021-09-27