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中华医学超声杂志(电子版) ›› 2015, Vol. 12 ›› Issue (09) : 728 -733. doi: 10.3877/cma.j.issn.1672-6448.2015.09.012

所属专题: 乳腺超声 文献

浅表器官超声影像学

超声造影在乳腺影像报告与数据系统分类中应用的价值
罗佳, 郑艳玲, 谢晓燕, 黄光亮, 梁瑾瑜, 黄蓓, 吕明德   
  • 收稿日期:2014-10-31 出版日期:2015-09-01
  • 通信作者: 谢晓燕

Significance and feasibility of the application of contrast-enhanced ultrasound in breast imaging reporting and data system

Jia Luo, Yanling Zheng, Xiaoyan Xie, Guangliang Huang, Jinyu Liang, Bei Huang, Mingde Lyu   

  • Received:2014-10-31 Published:2015-09-01
  • Corresponding author: Xiaoyan Xie
  • About author:
    Corresponding author: Xie Xiaoyan, Email:
引用本文:

罗佳, 郑艳玲, 谢晓燕, 黄光亮, 梁瑾瑜, 黄蓓, 吕明德. 超声造影在乳腺影像报告与数据系统分类中应用的价值[J]. 中华医学超声杂志(电子版), 2015, 12(09): 728-733.

Jia Luo, Yanling Zheng, Xiaoyan Xie, Guangliang Huang, Jinyu Liang, Bei Huang, Mingde Lyu. Significance and feasibility of the application of contrast-enhanced ultrasound in breast imaging reporting and data system[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2015, 12(09): 728-733.

目的

评价超声造影在乳腺影像报告与数据系统(BI-RADS)分类中的应用价值。

方法

回顾性分析298例行常规超声和超声造影检查并获得病理诊断的乳腺病变资料。首先由3位不知患者身份、病史、病例结果、其他影像学信息且未参与该患者超声检查的医师共同阅读全部病灶的常规超声图像,行BI-RADS分类,若3人意见不一则取其多数人的意见;随后阅读超声造影动态影像,记录各病灶的超声造影特征,分析良恶性肿瘤的超声造影表现的差异;然后随机抽取其中100例,并通过Logistic回归分析筛选出优势较大超声造影指标;再用所得超声造影指标修正全部病灶的BI-RADS分类。采用受试者工作特征曲线(ROC)比较超声造影修正前后的BI-RADS分类的诊断性能。

结果

在良恶性病变间,超声造影的增强程度、灌注方式、增强范围变化、造影剂分布、增强边缘、肿瘤血管图像特征,差异均有统计学意义。行Logistic回归分析后,其中优势比(OR)较大的超声造影观察指标为:增强边缘(OR=12.173)、增强范围变化(OR=6.182)、肿瘤血管(OR=4.124)。常规超声的BI-RADS分类结果为:2类3例,3类132例,4类154例,5类9例;经超声造影修正后的BI-RADS分类结果为:2类3例,3类157例,4类109例,5类29例;参考超声造影结果后BI-RADS 4类病例减少,BI-RADS 3类或5类病例增多,差异有统计学意义。联合超声造影前后行超声BI-RADS分类的ROC曲线下面积分别为0.826和0.885(95%置信区间分别为0.772~0.880、0.839~0.932)。

结论

超声造影的增强程度、灌注方式、增强范围变化、造影剂分布、增强边缘、肿瘤血管等在乳腺良恶性病变间差异有统计学意义。其中,对乳腺良恶性疾病鉴别意义较大的图像特征是增强边缘、增强范围变化、肿瘤血管。超声造影与常规超声联合行BI-RADS分类,可减少BI-RADS 4类的例数,减少不必要的活检。

Objective

To evaluate the application of contrast-enhanced ultrasound (CEUS) in the breast imaging reporting and data system (BI-RADS) classification.

Methods

From November 2008 to January 2012, 298 breast lesions in 298 patients underwent baseline ultrasonography and CEUS and the pathological diagnosis was obtained. The imaging data were analyzed independently by 3 radiologists, all of whom were blinded to identi, cation, clinical histories, histopathologic results and other imaging results of the patients and were not involved in sonographic imaging. Consensus results were obtained if opinions were different. The baseline ultrasound features were analyzed at first. Then the dynamic enhancement features were analyzed. Lesions were classified according to BI-RADS. The distinctions between benign and malignant lesions were analyzed. One hundred samples were randomly selected. According to the estimate odds ratios in multiple logistic regression analysis, important indicators of CEUS were selected. Then BI-RADS classification of the whole 298 cases corrected by important CEUS indicators were obtained. The receiver operating characteristic curve was used to evaluate the diagnostic capability of BI-RADS classification before and after CEUS.

Results

Enhancement level, perfusion modes, alteration of enhanced region, distribution of the contrast medium, edge of enhancement and tumor vessels showed statistical difference between benign and malignant lesions. After logistic regression was performed, edge of enhancement (OR=12.173), alteration of enhanced region (OR=6.182), tumor vessels (OR=4.124 ) were selected as significant factors. BI-RADS classification of baseline ultrasound were as follows, 3 cases in category 2, 132 cases in category 3, 154 cases in category 4 and 9 cases in category 5. BI-RADS classification of baseline ultrasound combined CEUS were as follows, 3 cases in category 2, 157 cases in category 3, 109 cases in category 4 and 29 cases in category 5. After CEUS, more cases are classified as Category 3 and Category 5. Before and after CEUS, areas under the ROC curve were 0.826 and 0.885 (95% confidence interval were 0.772-0.880 and 0.839-0.932).

Conclusions

Enhancement level, perfusion modes, alteration of enhanced region, distribution of the contrast medium, edge of enhancement and tumor vessels showed statistical difference between benign and malignant lesions. Edge of enhancement, alteration of enhanced region and tumor vessels were significant factors. Bringing CEUS into BI-RADS could reduce the number of cases of BI-RADS category 4 and reduce unnecessary biopsies.

表1 298例乳腺病灶二维常规超声图像特征(例)
表2 乳腺病灶常规二维超声BI-RADS分类的诊断结果[例(%)]
表3 298例乳腺病灶超声造影中的图像特征(例)
表4 Logistic回归分析超声造影图像特征结果
图1 女性,39岁,乳腺导管内癌。超声造影声像示增强边缘不规则,且超声造影所示的增强范围明显大于常规超声所示的低回声范围。常规超声所示低回声区近似于超声造影增强区中央的不均低增强区,结合病理为缺血变性区
图2 女性,41岁,良性乳腺肿物的血管,大小35 mm×24 mm。肿瘤中央可见粗大血管,向四周发出分支,血管走行自然平直
图3 女性,38岁,乳腺浸润性导管癌,大小19 mm×16 mm。紧邻病灶处可见走行扭曲的血管,部分弯曲呈袢状
表5 经超声造影修正后BI-RADS分类的诊断结果[例(%)]
表6 超声造影修正前后行BI-RADS分类的比较(例)
表7 超声造影前后行BI-RADS分类的曲线下面积
图4 乳腺病灶超声造影前后的受试者工作特征曲线
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