Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer

Abstract Breast-conserving surgery (BCS) plus postoperative radiotherapy has become the standard treatment for early-stage breast cancer. The aim of this study was to compare the setup accuracy of optical surface imaging by the Sentinel system with cone-beam computerized tomography (CBCT) imaging cu...

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Autores principales:	Xiaobo Wei, Mengjiao Liu, Yun Ding, Qilin Li, Changhai Cheng, Xian Zong, Wenming Yin, Jie Chen, Wendong Gu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/38c3175794634f0b96e5dc09a0ba17d5
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spelling	oai:doaj.org-article:38c3175794634f0b96e5dc09a0ba17d52021-12-02T11:41:04ZSetup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer10.1038/s41598-018-25644-w2045-2322https://doaj.org/article/38c3175794634f0b96e5dc09a0ba17d52018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25644-whttps://doaj.org/toc/2045-2322Abstract Breast-conserving surgery (BCS) plus postoperative radiotherapy has become the standard treatment for early-stage breast cancer. The aim of this study was to compare the setup accuracy of optical surface imaging by the Sentinel system with cone-beam computerized tomography (CBCT) imaging currently used in our clinic for patients received BCS. Two optical surface scans were acquired before and immediately after couch movement correction. The correlation between the setup errors as determined by the initial optical surface scan and CBCT was analyzed. The deviation of the second optical surface scan from the reference planning CT was considered an estimate for the residual errors for the new method for patient setup correction. The consequences in terms for necessary planning target volume (PTV) margins for treatment sessions without setup correction applied. We analyzed 145 scans in 27 patients treated for early stage breast cancer. The setup errors of skin marker based patient alignment by optical surface scan and CBCT were correlated, and the residual setup errors as determined by the optical surface scan after couch movement correction were reduced. Optical surface imaging provides a convenient method for improving the setup accuracy for breast cancer patient without unnecessary imaging dose.Xiaobo WeiMengjiao LiuYun DingQilin LiChanghai ChengXian ZongWenming YinJie ChenWendong GuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-7 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiaobo Wei Mengjiao Liu Yun Ding Qilin Li Changhai Cheng Xian Zong Wenming Yin Jie Chen Wendong Gu Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer
description	Abstract Breast-conserving surgery (BCS) plus postoperative radiotherapy has become the standard treatment for early-stage breast cancer. The aim of this study was to compare the setup accuracy of optical surface imaging by the Sentinel system with cone-beam computerized tomography (CBCT) imaging currently used in our clinic for patients received BCS. Two optical surface scans were acquired before and immediately after couch movement correction. The correlation between the setup errors as determined by the initial optical surface scan and CBCT was analyzed. The deviation of the second optical surface scan from the reference planning CT was considered an estimate for the residual errors for the new method for patient setup correction. The consequences in terms for necessary planning target volume (PTV) margins for treatment sessions without setup correction applied. We analyzed 145 scans in 27 patients treated for early stage breast cancer. The setup errors of skin marker based patient alignment by optical surface scan and CBCT were correlated, and the residual setup errors as determined by the optical surface scan after couch movement correction were reduced. Optical surface imaging provides a convenient method for improving the setup accuracy for breast cancer patient without unnecessary imaging dose.
format	article
author	Xiaobo Wei Mengjiao Liu Yun Ding Qilin Li Changhai Cheng Xian Zong Wenming Yin Jie Chen Wendong Gu
author_facet	Xiaobo Wei Mengjiao Liu Yun Ding Qilin Li Changhai Cheng Xian Zong Wenming Yin Jie Chen Wendong Gu
author_sort	Xiaobo Wei
title	Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer
title_short	Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer
title_full	Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer
title_fullStr	Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer
title_full_unstemmed	Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer
title_sort	setup errors and effectiveness of optical laser 3d surface imaging system (sentinel) in postoperative radiotherapy of breast cancer
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/38c3175794634f0b96e5dc09a0ba17d5
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Setup errors and effectiveness of Optical Laser 3D Surface imaging system (Sentinel) in postoperative radiotherapy of breast cancer

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