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两种膀胱准备方式在膀胱癌磁共振成像及术前鉴别肿瘤肌层浸润效能中的探索研究

鄂天娇 冯峰 徐海飞

鄂天娇, 冯峰, 徐海飞. 两种膀胱准备方式在膀胱癌磁共振成像及术前鉴别肿瘤肌层浸润效能中的探索研究[J]. CT理论与应用研究, 2023, 32(4): 501-508. DOI: 10.15953/j.ctta.2022.209
引用本文: 鄂天娇, 冯峰, 徐海飞. 两种膀胱准备方式在膀胱癌磁共振成像及术前鉴别肿瘤肌层浸润效能中的探索研究[J]. CT理论与应用研究, 2023, 32(4): 501-508. DOI: 10.15953/j.ctta.2022.209
E T J, FENG F, XU H F. Exploratory Research on the Influence of MR Image Quality of Bladder Cancer and Diagnostic Efficacy Using Two Preparation Methods[J]. CT Theory and Applications, 2023, 32(4): 501-508. DOI: 10.15953/j.ctta.2022.209. (in Chinese)
Citation: E T J, FENG F, XU H F. Exploratory Research on the Influence of MR Image Quality of Bladder Cancer and Diagnostic Efficacy Using Two Preparation Methods[J]. CT Theory and Applications, 2023, 32(4): 501-508. DOI: 10.15953/j.ctta.2022.209. (in Chinese)

两种膀胱准备方式在膀胱癌磁共振成像及术前鉴别肿瘤肌层浸润效能中的探索研究

doi: 10.15953/j.ctta.2022.209
详细信息
    作者简介:

    鄂天娇:女,硕士,南通市肿瘤医院医师,主要从事肿瘤影像的CT、MRI诊断,E-mail:etianjiao0420@163.com

    通讯作者:

    南通市肿瘤医院主任医师,擅长胸部、腹部肿瘤的CT、MR及PET-CT的影像诊断,E-mail:drfengfeng@163.com

  • 中图分类号: R  445;R  814

Exploratory Research on the Influence of MR Image Quality of Bladder Cancer and Diagnostic Efficacy Using Two Preparation Methods

  • 摘要: 目的:探讨两种膀胱准备方法对膀胱癌磁共振成像(MRI)的图像质量及术前鉴别膀胱癌肌层浸润诊断效能的影响。方法:76例膀胱癌患者行术前磁共振检查,分为A组和B组,分别行两种不同的膀胱准备方式,对比两种方法在高分辨率T2WI上图像质量有无差别,并结合弥散加权成像(DWI)及动态增强成像(DCE)序列,判断两组病例磁共振图像对判断膀胱癌病灶肌层浸润情况的诊断效能有无影响。结果:两位阅片者之间一致性良好,A组(禁食4~6 h后于检查前排空膀胱并通过导尿管向膀胱内灌注约100 mL生理盐水后半小时内进行检查),与B组(检查前2 h排空膀胱内尿液后禁食禁水)相比,前者具有更优的膀胱充盈度评分;在诊断效能上,A组病例诊断肌层浸润性膀胱癌的敏感性及准确度均高于B组,但其差异无统计学意义。结论:检查前通过导尿管向膀胱内灌注适当容量(本研究为100 mL)生理盐水可作为一种辅助膀胱准备方法,帮助膀胱癌患者的膀胱适度充盈,以提高磁共振图像质量,进而提高膀胱磁共振诊断效能。

     

  • 图  1  膀胱不同充盈度分类

    Figure  1.  The bladder distention degrees

    图  2  膀胱癌VI-RADS评分2分病例

    Figure  2.  The MR image of bladder cancer with VI-RADS score of 2

    图  3  膀胱癌VI-RADS评分5分病例

    Figure  3.  The MR image of bladder cancer with VI-RADS score of 5

    表  1  1.5T磁共振膀胱扫描序列参数表

    Table  1.   The scanning parameters of 1.5T MRI

    扫描参数 TR/ms TE/ms FOV/mm 矩阵 层厚/层间距/mm 平均次数 采集时间/s 激发角度 b值/(s/mm2
    T2WI Tra 6190 85 180 256×256 7.0/2.1 3 192 150
    Sag 6900 85 180 256×256 4.0/1.2 3 214 150
    Cor 6000 85 180 256×256 4.0/0.8 3 114 150
    DWI 4400 100 400 6 6 120 0,1500
    DCE 7.97 2.9 250 3 1 10
    下载: 导出CSV

    表  2  两组病例膀胱充盈情况

    Table  2.   Filling of bladder of two groups

    组别膀胱空虚/
    例(%)
    膀胱部分充盈/
    例(%)
    膀胱充盈良好/
    例(%)
    膀胱充盈过饱/
    例(%)
    膀胱内移动伪影/
    例(%)
    合计/例
    A组0(0.0)2(6.5)26(83.9)1(3.2)2(2.5)31
    B组3(6.7)14(31.1)21(46.7)2(4.4)5(11.1)45
    合计316473776
    下载: 导出CSV

    表  3  两组病例膀胱充盈度评分

    Table  3.   Bladder filling score of two groups

    组别1分/例(%)2分/例(%)3分/例(%)合计/例
    A组2(6.5) 3(9.7)26(83.9)31
    B组8(17.8)16(35.6)21(46.7)45
    合计10195776
    下载: 导出CSV

    表  4  病例肌层浸润情况

    Table  4.   Diagnostic effectiveness of

    病理结果影像评估有无肌层浸润
    无(A组/B组)有(A组/B组)合计(A组/B组)/例
    19/271/120/28
    0/33/11 3/14
    合计19/304/1223/42
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-10-29
  • 修回日期:  2023-02-17
  • 录用日期:  2023-02-23
  • 网络出版日期:  2023-06-12
  • 刊出日期:  2023-07-31

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