X射线容积成像系统配准方式对中下段食管癌放疗体位验证的影响

doi:10.13491/j.issn.1004-714X.2023.01.011

中国辐射卫生

2023, Vol. 32

Issue (1): 52-57 DOI: 10.13491/j.issn.1004-714X.2023.01.011

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X射线容积成像系统配准方式对中下段食管癌放疗体位验证的影响

刘豪佳¹, 王慧涛², 徐红卫¹, 郑安平², 孙晓东², 朱金峰²

1. 郑州大学第五附属医院，河南郑州 450000;
2. 安阳市肿瘤医院，河南安阳 455000

Effects of X-ray volume imaging registration methods on position verification for radiotherapy in treatment of middle/lower-segment esophageal cancer

LIU Haojia¹, WANG Huitao², XU Hongwei¹, ZHENG Anping², SUN Xiaodong², ZHU Jinfeng²

1. The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450000 China;
2. Anyang Tumor Hospital, Anyang 455000 China

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摘要目的探讨X射线容积成像系统不同配准方式对中下段食管癌放射治疗中摆位误差的影响，为食管癌放射治疗提供参考。方法随机选取63名中下段食管癌患者，对其首次治疗时XVI系统获取的重建图像，分别选择灰度配准和骨性配准方式进行系统自动配准，得到2种方法在x（左右）、y（头脚）、z（前后）方向的3个平移误差和3个旋转误差值并进行统计分析。结果灰度配准在x、z方向的平移误差小于骨性配准（x方向t = −2.78，z方向t = −2.15，P < 0.05），在y方向差异无统计学意义（P > 0.05）。3个旋转方向配准误差值均小于1°且灰度配准小于骨性配准，但差异无统计学意义（P > 0.05）。结论对于中下段食管癌放疗建议选择灰度配准，实际工作中在自动配准后还应经人工确认或微调，同时除平移误差外也应关注旋转误差。

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	刘豪佳
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	孙晓东
	朱金峰

关键词 ： X射线容积成像, 图像配准, 放射治疗, 中下段食管癌

收稿日期: 2022-03-09

PACS:

R816.5

基金资助:河南省医学科技攻关计划联合共建项目（项目编号：LHGJ20200813）

作者简介: 刘豪佳（1985—），女，河南平顶山人，硕士研究生，物理师，从事医学物理方面的研究工作。E-mail：lhj8503@163.com

引用本文:

刘豪佳, 王慧涛, 徐红卫, 郑安平, 孙晓东, 朱金峰. X射线容积成像系统配准方式对中下段食管癌放疗体位验证的影响[J]. 中国辐射卫生, 2023, 32(1): 52-57.
LIU Haojia, WANG Huitao, XU Hongwei, ZHENG Anping, SUN Xiaodong, ZHU Jinfeng. Effects of X-ray volume imaging registration methods on position verification for radiotherapy in treatment of middle/lower-segment esophageal cancer. Chinese Journal of Radiological Health, 2023, 32(1): 52-57.

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