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J Ultrasound Med. 2017 Oct;36(10):2007-2014. doi: 10.1002/jum.14293. Epub 2017 Jul 14.

Shear Wave Elastography for Surgically Verified Breast Papillary Lesions: Is It Effective for Differentiation Between Benign and Malignant Lesions?

Author information

1
Department of Radiology, CHA Bundang Medical Center, CHA University, Bundang-gu, Korea.

Abstract

OBJECTIVES:

To evaluate the effectiveness of shear wave elastography (SWE) for differentiating benign from malignant breast papillary lesions METHODS: B-mode ultrasound (US) and SWE were available in 56 surgically confirmed papillary lesions (48 [85.7%] benign and 8 [14.3%] malignant). The diagnostic performances of US, SWE parameters, and combined US with SWE parameters were calculated by receiver operating characteristic curve analysis and compared.

RESULTS:

The highest area under the receiver operating characteristic curve (Az ) value for US was 0.500 (95% confidence interval [CI], 0.363, 0.637). The sensitivity was 100% (8 of 8), and the specificity was 0% (0 of 48). False-positive biopsy results were obtained in 48 (85.7%) of 56 lesions. The Az value for mean elasticity (0.721; 95% CI, 0.585, 0.833) was higher than that for B-mode US (P < .01) and the highest with the optimal cutoff value of 44.3 kPa (sensitivity, 75%; specificity, 75%). By adding the mean elasticity cutoff value of 44.3 kPa to B-mode US, the performance was increased (Az , 0.781; 95% CI, 0.585, 0.833) with sensitivity of 87.5% and specificity of 68.8%, and false-positive biopsy results were reduced to 26.8%.

CONCLUSIONS:

The additional use of SWE to B-mode US may be effective for differentiating benign and malignant breast papillary lesions, with a significant decrease in the false-positive biopsy rate.

KEYWORDS:

breast; breast ultrasound; elastography; papillary lesion; shear wave elastography

PMID:
28708299
DOI:
10.1002/jum.14293
[Indexed for MEDLINE]

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