Open Access

A comparative study on superb microvascular imaging and conventional ultrasonography in differentiating BI‑RADS 4 breast lesions

  • Authors:
    • Yi‑Cheng Zhu
    • Dao‑Ming Zu
    • Yuan Zhang
    • Jun Shan
    • Xiu‑Rong Shi
    • Shu‑Hao Deng
    • Quan Jiang
  • View Affiliations

  • Published online on: July 11, 2019     https://doi.org/10.3892/ol.2019.10603
  • Pages: 3202-3210
  • Copyright: © Zhu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

This prospective study aimed to explore the diagnostic value of superb microvascular imaging (SMI) in differentiating Breast Imaging Reporting and Data System (BI‑RADS) 4 breast lesions compared with conventional ultrasonography (US). A total of 111 patients with 116 breast lesions underwent grayscale ultrasound (US), colour Doppler flow imaging (CDFI) and SMI breast imaging between February 2016 and May 2018. CDFI and SMI were performed to evaluate vascular quantity, morphology, and distribution characteristics. The detection of malignancy was compared between grayscale US alone, US + CDFI and US + SMI in terms of the BI‑RADS stratification system. SMI was observed to be significantly more accurate in distinguishing malignant breast lesions (86.67%) compared with CDFI (80.00%) (P<0.001). Among malignant lesions, SMI detected 80.00% of those that contained ≥4 vessels, while CDFI only detected 56.67%. Penetrating and branching vessels were identified by SMI in 53.33% of malignant breast lesions and by CDFI in 10.00%. There was no significant difference in vascular distribution by SMI (P=0.094) and by CDFI (P=0.087). US + SMI was associated with higher sensitivity, specificity, and accuracy rates (86.67, 83.72 and 84.48%, respectively) compared with US + CDFI (80.00, 72.09 and 74.14%, respectively). The area under the curve values from receiver operating characteristic analysis of US + SMI, US + CDFI and US alone were 0.852 [95% confidence interval (CI): 0.768‑0.936)] 0.760 (95% CI: 0.660‑0.860), 0.698 (95% CI: 0.589‑0.807), respectively (P<0.001). SMI yielded more detailed vascular information associated with malignant breast masses when compared with conventional US. Therefore, as an adjunct to grayscale, SMI exhibited a markedly improved diagnostic capability in distinguishing malignant and benign breast lesions, particularly those of BI‑RADS category 4.
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September 2019
Volume 18 Issue 3

Print ISSN: 1792-1074
Online ISSN:1792-1082

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APA
Zhu, Y., Zu, D., Zhang, Y., Shan, J., Shi, X., Deng, S., & Jiang, Q. (2019). A comparative study on superb microvascular imaging and conventional ultrasonography in differentiating BI‑RADS 4 breast lesions. Oncology Letters, 18, 3202-3210. https://doi.org/10.3892/ol.2019.10603
MLA
Zhu, Y., Zu, D., Zhang, Y., Shan, J., Shi, X., Deng, S., Jiang, Q."A comparative study on superb microvascular imaging and conventional ultrasonography in differentiating BI‑RADS 4 breast lesions". Oncology Letters 18.3 (2019): 3202-3210.
Chicago
Zhu, Y., Zu, D., Zhang, Y., Shan, J., Shi, X., Deng, S., Jiang, Q."A comparative study on superb microvascular imaging and conventional ultrasonography in differentiating BI‑RADS 4 breast lesions". Oncology Letters 18, no. 3 (2019): 3202-3210. https://doi.org/10.3892/ol.2019.10603