术前预测直肠癌脉管浸润的多模态影像组学模型的建立与验证
发布时间:2021-12-28 21:29
目的:探讨基于直肠MRI及CT的多模态影像组学模型在术前预测直肠癌脉管浸润中的价值。方法:回顾性分析吉林大学第一医院2016年6月至2018年10月,行MR和CT扫描并在2周内获得手术病理证实及脉管浸润病理结果的94例直肠癌患者(阳性46例,阴性48例),以7:3的比例随机分为训练组(n=65)和验证组(n=29)。我们分别在T2加权成像、弥散加权成像和CT静脉期的每一层面上描绘出完整病灶作为感兴趣区域(ROI),利用A.K.软件在ROI中提取影像组学特征。采用T检验或Mann-Whitney U检验、Spearman秩相关性分析和最小绝对收缩选择算子(LASSO)算法选取最有预测价值的特征。基于多因素logistic回归构建影像组学评分。本文分别以两种融合方式建立预测脉管浸润的多模态组学模型,第一种为分别在三种单一模态中进行特征选择,分别得到三个影像组学评分CTScore,T2WIScore和DWIScore,然后将三个组学评分融合生成新的多模态影像组学评分A;第二种是将三种模态特征进行集成,统一进行特征选择,构建多模...
【文章来源】:吉林大学吉林省 211工程院校 985工程院校 教育部直属院校
【文章页数】:54 页
【学位级别】:硕士
【部分图文】:
研究对象募集流程图
ROI勾画abc
预测直肠癌脉管浸
【参考文献】:
期刊论文
[1]Prognostic significance of lymphovascular invasion in colorectal cancer and its association with genomic alterations[J]. Hui-Hong Jiang,Zhi-Yong Zhang,Xiao-Yan Wang,Xuan Tang,Hai-Long Liu,Ai-Li Wang,Hua-Guang Li,Er-Jiang Tang,Mou-Bin Lin. World Journal of Gastroenterology. 2019(20)
[2]Individualized prediction of perineural invasion in colorectal cancer: development and validation of a radiomics prediction model[J]. Yanqi Huang,Lan He,Di Dong,Caiyun Yang,Cuishan Liang,Xin Chen,Zelan Ma,Xiaomei Huang,Su Yao,Changhong Liang,Jie Tian,Zaiyi Liu. Chinese Journal of Cancer Research. 2018(01)
[3]2017版欧洲肿瘤学会直肠癌指南解读[J]. 陈功,王屹. 中华胃肠外科杂志. 2017 (11)
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本文编号:3554759
【文章来源】:吉林大学吉林省 211工程院校 985工程院校 教育部直属院校
【文章页数】:54 页
【学位级别】:硕士
【部分图文】:
研究对象募集流程图
ROI勾画abc
预测直肠癌脉管浸
【参考文献】:
期刊论文
[1]Prognostic significance of lymphovascular invasion in colorectal cancer and its association with genomic alterations[J]. Hui-Hong Jiang,Zhi-Yong Zhang,Xiao-Yan Wang,Xuan Tang,Hai-Long Liu,Ai-Li Wang,Hua-Guang Li,Er-Jiang Tang,Mou-Bin Lin. World Journal of Gastroenterology. 2019(20)
[2]Individualized prediction of perineural invasion in colorectal cancer: development and validation of a radiomics prediction model[J]. Yanqi Huang,Lan He,Di Dong,Caiyun Yang,Cuishan Liang,Xin Chen,Zelan Ma,Xiaomei Huang,Su Yao,Changhong Liang,Jie Tian,Zaiyi Liu. Chinese Journal of Cancer Research. 2018(01)
[3]2017版欧洲肿瘤学会直肠癌指南解读[J]. 陈功,王屹. 中华胃肠外科杂志. 2017 (11)
[4]2017版美国国立综合癌症网络结直肠癌指南更新解读[J]. 陈功. 中华胃肠外科杂志. 2017 (01)
[5]Lymphovascular invasion in rectal cancer following neoadjuvant radiotherapy: A retrospective cohort study[J]. Chang-Zheng Du, Ming Li, Jin Gu, Department of Colorectal Surgery, Peking University School of Oncology, Beijing 100142, China Wei-Cheng Xue, Department of Pathology, Peking University School of Oncology, Beijing 100142, China Yong Cai, Department of Radiotherapy, Peking University School of Oncology, Beijing 100142, China. World Journal of Gastroenterology. 2009(30)
本文编号:3554759
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