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CT纹理分析对腹主动脉瘤腔内修补术后瘤体体积变化的评价意义

郝云秀 王志伟 薛华丹 金征宇

郝云秀, 王志伟, 薛华丹, 金征宇. CT纹理分析对腹主动脉瘤腔内修补术后瘤体体积变化的评价意义[J]. 协和医学杂志, 2020, 11(1): 16-20. doi: 10.3969/j.issn.1674-9081.20190216
引用本文: 郝云秀, 王志伟, 薛华丹, 金征宇. CT纹理分析对腹主动脉瘤腔内修补术后瘤体体积变化的评价意义[J]. 协和医学杂志, 2020, 11(1): 16-20. doi: 10.3969/j.issn.1674-9081.20190216
Yun-xiu HAO, Zhi-wei WANG, Hua-dan XUE, Zheng-yu JIN. Value of CT Texture Analysis for Volumetric Changes of Abdominal Aortic Aneurysm after Endovascular Repair[J]. Medical Journal of Peking Union Medical College Hospital, 2020, 11(1): 16-20. doi: 10.3969/j.issn.1674-9081.20190216
Citation: Yun-xiu HAO, Zhi-wei WANG, Hua-dan XUE, Zheng-yu JIN. Value of CT Texture Analysis for Volumetric Changes of Abdominal Aortic Aneurysm after Endovascular Repair[J]. Medical Journal of Peking Union Medical College Hospital, 2020, 11(1): 16-20. doi: 10.3969/j.issn.1674-9081.20190216

CT纹理分析对腹主动脉瘤腔内修补术后瘤体体积变化的评价意义

doi: 10.3969/j.issn.1674-9081.20190216
基金项目: 

中央级公益性科研院所基本科研项目 2017PT32004

国家自然科学基金 81401496

详细信息
    通讯作者:

    王志伟 电话:010-69155444, E-mail:zhiweiwang1981@sina.com

  • 中图分类号: R445

Value of CT Texture Analysis for Volumetric Changes of Abdominal Aortic Aneurysm after Endovascular Repair

More Information
  • 摘要:   目的  探讨CT纹理分析对腹主动脉瘤腔内修补术(endovascular aneurysm repair, EVAR)后瘤体体积变化的评价意义。  方法  回顾性收集2014年7月至2019年6月于北京协和医院放射科行腹盆部增强CT血管造影(computed tomography angiography, CTA)随访的EVAR术后患者的临床及影像学资料, 患者于术后第3、12个月分别接受两次腹盆部CTA检查, 以传统测量方法为分组依据, 根据动脉瘤体积变化情况将患者分为动脉瘤体积增大组和体积未增大组。采用分割软件, 手动勾勒所有动脉瘤术后第1次随访时轴位最大截面, 提取动脉瘤支架外血栓部分的纹理特征, 同时采用灰度共生矩阵(grey level co-occurrence matrix, GLCM)、灰度游程矩阵(grey level run length matrix, GLRLM)和灰度差分矩阵(grey level difference matrix, GLDM)3种方法, 分析其与动脉瘤体积增大的关系。  结果  共70例符合纳入和排除标准的患者入选本研究, 其中29例(41.4%, 29/70)EVAR术后腹主动脉瘤体积增大, 41例(58.6%, 41/70)瘤体未增大。GLCM、GLRLM和GLDM 3种方法预测动脉瘤体积增大的曲线下面积分别为0.892、0.888和0.800, GLCM的预测效能最佳, 灵敏度和特异度分别为86.2%和85.4%, GLDM的曲线下面积最小, 灵敏度和特异度分别为86.2%和68.3%。  结论  CT纹理分析能有效预测EVAR术后动脉瘤的体积变化。
    利益冲突  无
  • 图  1  本研究入选病例纳入流程图

    表  1  腹主动脉瘤腔内修补术后动脉瘤体积的变化[M(P25, P75), cm3]

    分组 术后3个月 术后12个月 Z P
    体积增大组(n=29) 114.6(88.7,226.2) 123.4(91.8,241.5) -4.703 <0.01
    体积未增大组(n=41) 127.0(97.4,196.9) 114.2(78.7,183.5) -5.417 <0.01
    下载: 导出CSV

    表  2  3种灰度矩阵纹理分析技术对腹主动脉瘤腔内修补术后动脉瘤体积变化的诊断效能

    纹理分析技术 曲线下面积 准确度 灵敏度 特异度
    GLCM 0.892 0.859 0.862 0.854
    GLDM 0.800 0.788 0.862 0.683
    GLRLM 0.888 0.859 0.828 0.902
    GLCM:灰度共生矩阵;GLRLM:灰度游程矩阵;GLDM:灰度差分矩阵
    下载: 导出CSV
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  • 收稿日期:  2019-10-08
  • 刊出日期:  2020-01-30

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