鼻咽癌IMRT海马头部、体部及尾部剂量分析

doi:10.3760/cma.j.issn.1004-4221.2017.11.003

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Abstract

Objective To analyze the radiation doses to the head, body, and tail of the hippocampus in intensity-modulated radiotherapy (IMRT) for nasopharyngeal carcinoma (NPC). MethodsTen NPC patients treated with IMRT were selected, and the head, body, and tail of both hippocampi were delineated on T1-weighted images. The doses to the hippocampus were then analyzed. WAIS-CR speech test Resutls were tested by paired sample t-test. Resutls The mean doses to left and right hippocampi were 1147±976 cGy and 1011±602 cGy, respectively. The mean doses to the head, body, and tail of the left hippocampus were 1739±1317 cGy, 890±982 cGy, and 547±688 cGy, respectively (P=0.042);the mean doses to the head, body, and tail of the right hippocampus were 1691±942 cGy, 744±483 cGy, and 531±603 cGy, respectively (P=0.002).The dose to the hippocampus decreased from the head to the tail, and the irradiated volume also decreased as the dose varied. Conclutions The dose to hippocampus decreases from the head to the tail in NPC patients treated with IMRT, which is worthy of attention.

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	Articles by authors
	Sun Zongwen
	Shi Lei
	Kong Yue
	Du Fenglei
	Xie Tieming
	Hua Yonghong
	Hu Qiaoying
	Chen Xiaozhong
	Chen Yuanyuan
	Chen Ming

Key words： Nasopharyngeal neoplasms/intensity modulated radiotherapy Radiotherapy dosage Hippocampus

Received: 08 May 2017

Corresponding Authors: Chen Yuanyuan,Email:chenyy@zjcc.org.cn;Chen Ming,Email:chenming@zjcc.org.cn

Cite this article:

Sun Zongwen,Shi Lei,Kong Yue et al. Preliminary results of the exposed dose of head,body and tail of the hippocampus in nasopharyngeal carcinoma patients treated with intensity modulated radiotherapy[J]. Chinese Journal of Radiation Oncology, 2017, 26(11): 1253-1258.

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http://journal12.magtechjournal.com/Jweb_fszlx/EN/10.3760/cma.j.issn.1004-4221.2017.11.003 OR http://journal12.magtechjournal.com/Jweb_fszlx/EN/Y2017/V26/I11/1253

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