[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12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