辅助体表标记摆位方法在胸腹部超重患者中的应用

doi:10.3760/cma.j.cn113030-20190718-00281

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Abstract Objective To investigate whether adjuvant skin-marker positioning can decrease the set-up errors in overweight patients with thoracic and abdominal tumors. Methods A total of 60 overweight patients with thoracic and abdominal tumors treated with radiotherapy in the First Affiliated of Fujian Medical University between January 2018 and December 2018 were randomly divided into two groups. In group A, conventional skin-marker positioning was adopted. In group B, conventional skin-marker positioning combined with adjuvant skin-marker position was employed. All patients were immobilized with thermoplastic positioning body membrane with head-body plate fixation. The set-up errors in the right-left, head-foot and dorsoventral directions were obtained from cone-beam CT (CBCT) scan system before radiation delivery. The set-up errors were statistically compared between two groups by using t-test. Results In group A, the set-up errors in the right-left, head-foot and dorsoventral directions were (4.47±2.91) mm,(5.43±2.61) mm and (3.87±2.40) mm, significantly higher compared with (2.97±1.68) mm,(3.21±1.62) mm and (2.59±1.57) mm, respectively (all P<0.001). Conclusion Adjuvant skin-marker positioning method can reduce the set-up errors and enhance the positioning repeatability in overweight patients with thoracic and abdominal tumors receiving radiotherapy.

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	Articles by authors
	Wu Jiandong
	Chen Xiuying
	Hong Jinsheng
	Wu Yinghui
	Chen Longjian
	Huang Weikang
	Xue Wangui
	Wu Bin

Key words： Thoracic and abdominal tumor Adjuvant skin-marker positioning Set-up error Overweight patient

Received: 18 July 2019

Corresponding Authors: Chen Xiuying, Email:cfjlc@163.com

Cite this article:

Wu Jiandong,Chen Xiuying,Hong Jinsheng et al. Application of adjuvant skin-marker positioning in overweight patients with thoracic and abdominal tumors[J]. Chinese Journal of Radiation Oncology, 2020, 29(12): 1091-1095.

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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.cn113030-20190718-00281 OR http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2020/V29/I12/1091

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