Reproducibility and diagnostic performance of shear wave elastography in evaluating breast solid mass

Publication date: Available online 6 April 2017
Source:Clinical Imaging
Author(s): Sun Hong, Ok Hee Woo, Hye Seon Shin, Soon-Young Hwang, Kyu Ran Cho, Bo Kyoung Seo
Shear wave elastography (SWE) was performed independently by two radiologists in 264 solid breast masses. The images were reviewed for color overlay pattern (COP) classification by the two radiologists, double blinded to any information. The interobserver agreement of the COP was almost perfect (κ=0.908) with a high Emax (ICC=0.89). The AUC value of the COP (0.954) was significantly higher than that of Emax (0.915) (p=0.002) but not significantly different from that of Emax combined with COP (0.957) (p=0.098).The SWE color overlay pattern and Emax of breast masses are highly reproducible. The COP has better diagnostic ability than does Emax, suggesting that it is a more reliable parameter for solid breast mass evaluation.



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