Assessing inter and intrafraction uncertainties in adult brain cancer patients using 2D/3D kV and CBCT imaging

被引：0
|
作者：
Indramohan, K. [1 ]
Moinuddin, S. [1 ]
Akter, T. [1 ]
Webster, A. [1 ]
Wilson, E. [1 ]
Fersht, N. [1 ]
Kosmin, M. [1 ,2 ]
机构：
[1] UCLH, Dept Radiotherapy, London, England
[2] Univ Coll London Hosp Biomed Res Ctr, NIHR, London, England
来源：
RADIOGRAPHY | 2024年 / 30卷 / 05期
关键词：
2D/3D imaging; 6DoF; Image-guided radiotherapy; Patient set-up; Brain tumour;
D O I：
10.1016/j.radi.2024.04.010
中图分类号：
R8 [特种医学]; R445 [影像诊断学];
学科分类号：
1002 ; 100207 ; 1009 ;
摘要：
Method: 2D/3D kV imaging and CBCT data using 6 degrees of freedom (6DoF) were compared to evaluate inter and intrafraction motion. Results: Results showed that intrafraction errors were low and interfraction levels were within institutional protocols. Conclusion: Con fidence was given to use low dose 2D/3D kV imaging to con firm daily patient set up errors, and to use pre-treatment CBCT only once weekly for additional imaging information. Implications for practice: Further research is necessary to assess other uncertainties, to enable the calculation of a margin and determining the feasibility of further reduction of this. Crown Copyright (c) 2024 Published by Elsevier Ltd on behalf of The College of Radiographers. All rights reserved.
引用
收藏
页码：1249 / 1257
页数：9
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