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Comparison of Ultrasound Elastography and Color Doppler Ultrasonography for Distinguishing Small Triple‐Negative Breast Cancer From Fibroadenoma
Author(s) -
Yeo Soo Hyun,
Kim Ga Ram,
Lee Su Hyun,
Moon Woo Kyung
Publication year - 2018
Publication title -
journal of ultrasound in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 91
eISSN - 1550-9613
pISSN - 0278-4297
DOI - 10.1002/jum.14564
Subject(s) - medicine , fibroadenoma , elastography , radiology , breast imaging , receiver operating characteristic , ultrasound , intraclass correlation , doppler effect , breast cancer , biopsy , mammography , nuclear medicine , cancer , clinical psychology , psychometrics , physics , astronomy
Objectives To compare the performance of ultrasound elastography and color Doppler ultrasonography (US) in distinguishing small, oval, or round triple‐negative breast cancer from fibroadenoma and the influence on the further management decision at US. Methods In total, 131 biopsy‐proven oval or round fibroadenomas (n = 68) and triple‐negative breast cancers (n = 63) smaller than 2 cm were included. Three blinded readers assessed the images from US, elastography, and color Doppler imaging according to the Breast Imaging Reporting and Data System lexicon independently. Interobserver agreement was assessed, and sensitivity, specificity, accuracy, and area under the receiver operating characteristic curve values for each data set were compared. Pathologic results were reference standards. Results The interobserver agreements were excellent (intraclass correlation coefficients, 0.856 for US, 0.948 for elastography, and 0.864 for color Doppler). The specificity and accuracy of US with elastography were increased compared with US alone or US with Doppler imaging without statistically significant differences in sensitivity. The average area under the curve for US with elastography (0.869) was increased compared with US alone (0.650) or US with color Doppler (0.576). Conclusions Elastography is more useful than color Doppler imaging for distinguishing small, oval, or round triple‐negative breast cancer from fibroadenoma, and elastography can help avoid biopsy of benign masses.