Diagnostic utility of two-dimensional shear wave elastography to differentiate benign and malignant breast lesions

Abstract

Aim: The aim of this study was to evaluate the diagnostic performance of two-dimensional shear wave elastography in thedifferentiation of malignant and benign breast lesions.Material and Methods: A total of 83 breast lesions in 76 patients were prospectively investigated with B-mode ultrasonography andtwo-dimensional shear wave elastography techniques. B-mode ultrasonography findings were classified based on BI-RADS lexicon5th edition. The mean elasticity and the standard deviation of speed mode (m/s) and elasticity mode (kPa) were calculated for allbreast lesions. Diagnostic performances of each quantitative parameters were compared.Results: Of 83 breast lesions, 45 (54.2%) were benign and 38 (45.7%) were malignant. Among the all shear wave elastographyparameters, the standard deviation (ESD) of the shear wave speed (m/s) had the highest AUROC (0.953) value. When a cut-off valueof 0.85 m/s was used for ESD of speed mode, sensitivity, specificity, accuracy, PPV, and NPV were detected as 94.7%, 88.8%, 91.5%,87.8%, and 95.2%, respectively.Conclusions: Two-dimensional shear wave elastography has excellent diagnostic performance in the differentiation of benign andmalignant breast lesions. The standard deviation (ESD) of speed modehad the best diagnostic performance when compared otherquantitative parameters