Diagnostic role of shear wave elastography for differentiating benign and malignant breast masses

SA Journal of Radiology

Field Value
Title Diagnostic role of shear wave elastography for differentiating benign and malignant breast masses
Creator Sravani, Nichanametla Ramesh, Ananthakrishnan Sureshkumar, Sathasivam Vijayakumar, Chellappa Abdulbasith, K.M. Balasubramanian, Gopal Ch Toi, Pampa
Subject general practice; education; tertiary care elastography; B-mode ultrasonography; BI-RADS; diagnostic value; non-invasive imaging; breast carcinoma.
Description Background: Use of B-mode ultrasound (US) may not obviate the need for diagnosis by histopathology, which is an invasive technique and remains the gold standard. These limitations are being overcome with the advent of shear wave elastography (SWE).Objectives: To assess the diagnostic role of SWE parameters and combined SWE and B-mode US in diagnosing malignant breast lesions.Method: This cross-sectional study included all patients with a breast mass on clinical examination. A B-mode US with a Breast Imaging Reporting and Data System (BI-RADS) assessment and SWE evaluation (distance ratio [DR], area ratio [AR] and shear wave velocity [SWV]) in the lesion and healthy breast tissue of all recruited patients was performed. Cut-offs for SWE parameters were derived by receiver operating characteristic (ROC) analysis. The diagnostic performance of the B-mode US, the SWE parameters and the combined imaging in diagnosing malignancy was assessed.Results: This study included a total of 175 breast masses. The median values of the SWE parameters were significantly higher (p 0.001) in the malignant breast masses (DR, 1.29 vs. 1.03; AR, 1.69 vs. 1.06; and SWV, 9.1 metre per second [m/s] vs. 2.1 m/s). The ROC cut-off for malignancy was derived at 1.135 m/s, 1.18 m/s and 3.18 m/s, respectively, for DR, AR and SWV. The area under the ROC curve was highest for the DR (0.930), whilst this value was 0.914 and 0.901 for the SWV and AR, respectively. Amongst the respective sensitivities and specificities of the B-mode US (90.6% and 90%), SWE (97.6% and 61.1%), SWE (excluding AR) (96.5% and 77.8%) and combined imaging (100% and 72.2%), the highest sensitivity was noted for the combined method.Conclusion: All the SWE parameters were significantly higher in the malignant breast masses, compared to the benign lesions. On combining SWE and B-mode US, there was a significant increase in sensitivity but a decrease in specificity.
Publisher AOSIS
Contributor nil
Date 2020-12-21
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — qualitative research
Format text/html application/epub+zip text/xml application/pdf
Identifier 10.4102/sajr.v24i1.1999
Source South African Journal of Radiology; Vol 24, No 1 (2020); 10 pages 2078-6778 1027-202X
Language eng
Relation info:eu-repo/grantAgreement/EC/FP7/148647 https://sajr.org.za/index.php/sajr/article/view/1999/2682 https://sajr.org.za/index.php/sajr/article/view/1999/2681 https://sajr.org.za/index.php/sajr/article/view/1999/2683 https://sajr.org.za/index.php/sajr/article/view/1999/2680
Coverage Indian February 2015- November 2017 Clinically palpable breast mass patients
Rights info:eu-repo/semantics/openAccess Copyright (c) 2020 Nichanametla Sravani, Ananthakrishnan Ramesh, Sathasivam Sureshkumar, Chellappa Vijayakumar, K.M. Abdulbasith, Gopal Balasubramanian, Pampa Ch Toi https://creativecommons.org/licenses/by/4.0