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

页码：1249 / 1257

页数：9