[1]张白霖,黄泽裕,戴振晖,等.直肠充盈对直肠壁CT影像组学特征的影响[J].中国医学物理学杂志,2022,39(2):194-197.[doi:DOI:10.3969/j.issn.1005-202X.2022.02.011]
　ZHANG Bailin,Huang Zeyu,DAI Zhenhui,et al.Effects of rectal filling on CT radiomics features of rectal wall[J].Chinese Journal of Medical Physics,2022,39(2):194-197.[doi:DOI:10.3969/j.issn.1005-202X.2022.02.011]
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直肠充盈对直肠壁CT影像组学特征的影响()
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《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]

卷:
39卷
期数:
2022年第2期
页码:
194-197
栏目:
医学影像物理
出版日期:
2022-02-26

文章信息/Info

Title:
Effects of rectal filling on CT radiomics features of rectal wall
文章编号:
1005-202X（2022）02-0194-04
作者:
张白霖1; 黄泽裕2; 戴振晖1; 朱琳1; 杨耕1; 靳怀志1; 高蕾1; 王学涛1
.广州中医药大学第二附属医院大学城放射治疗区， 广东 广州 510006； 2.广州中医药大学医学信息工程学院， 广东 广州 510006
Author(s):
ZHANG Bailin1;  Huang Zeyu2;  DAI Zhenhui1;  ZHU Lin1;  YANG Geng1;  JIN Huaizhi1;  GAO Lei1;  WANG Xuetao1
1. Department of Radiotherapy in Guangzhou Higher Education Mega Center, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510006, China 2. School of Medical Information Engineering, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
关键词:
影像组学; 直肠; 直肠充盈; 直肠壁; 计算机断层扫描
Keywords:
Keywords: radiomics rectum rectal filling rectal wall computed tomography
分类号:
R815
DOI:
DOI:10.3969/j.issn.1005-202X.2022.02.011
文献标志码:
A
摘要:
目的：探讨直肠充盈对直肠壁CT影像组学特征的影响。方法：收集95例宫颈癌后装治疗定位CT扫描图像，患者在直肠填充苦参凝胶前后分别进行CT扫描，手动勾画直肠壁，计算提取7类共计851个特征，包括形态、统计、灰度相关矩阵、灰度游程矩阵、灰度共生矩阵、灰度区域矩阵及邻域灰度差分矩阵特征，采用一致性相关系数评估特征稳定性，威尔科克森符号秩检验分析直肠充盈对直肠壁CT影像组学特征的影响。结果：直肠充盈前后较稳定（一致性相关系数值小于0.8）的特征占总数的13%（113/851），有显著性差异（P<0.05）的特征占总数的92%（782/851）。结论：直肠充盈对直肠壁CT影像组学特征影响较大，应予以关注。
Abstract:
Objective To investigate the effects of rectal filling on the CT radiomics features of rectal wall. Methods The positioning CT images of 95 patients treated by brachytherapy for cervical cancer were collected. CT scans were performed before and after rectal filling with KUSHEN Ningjiaos, and the rectal wall was manually delineated. A total of 851 features in 7 categories were calculated and extracted, including morphology, first order statistical feature, grey level dependence matrix, grey level run length matrix, gray level co-occurrence matrix, grey level size zone matrix and neighborhood grey-tone difference matrix. The stability of features was evaluated using concordance correlation coefficient (CCC), and the effects of rectal filling on the CT radiomics features of rectal wall was analyzed by Wilcoxon signed rank test. Results The comparison before and after rectal filling revealed that 13% (113/851) of the features remained stable (CCC<0.8), and that features with significant difference (P<0.05) accounted for 92% (782/851). Conclusion The rectal filling which has a great effect on the CT radiomics features of rectal wall should be of concern.

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备注/Memo

备注/Memo:
【收稿日期】2021-09-21 【基金项目】教育部产学合作协同育人项目（201902119002）；广东省医学科研基金（A2019196） 【作者简介】张白霖，工程师，研究方向：肿瘤放射物理，E-mail: 183489907@qq.com 【通信作者】王学涛，主任技师，研究方向：肿瘤放射物理，E-mail: wangxuetao0625@126.com
更新日期/Last Update: 2022-03-07