Combined Use of Ultrasound Elastography and B-Mode Sonography for Differentiation of Benign and Malignant Circumscribed Breast Masses

Title
Combined Use of Ultrasound Elastography and B-Mode Sonography for Differentiation of Benign and Malignant Circumscribed Breast Masses
Authors
박정선
Keywords
breast; breast ultrasound; elasticity imaging techniques; sonography
Issue Date
2015-11
Publisher
AMER INST ULTRASOUND MEDICINE
Citation
JOURNAL OF ULTRASOUND IN MEDICINE, v. 34, NO 11, Page. 1951-1959
Abstract
Objectives-To evaluate the diagnostic performance of combined B-mode sonography and ultrasound elastography for differentiation between benign and malignant breast masses with circumscribed margins. Methods-We analyzed 109 pathologically proven circumscribed breast masses. Two radiologists retrospectively reviewed B-mode sonograms and elastograms in consensus. Based on the American College of Radiology Breast Imaging Reporting and Data System, we determined categories of the masses on B-mode sonography. Elastographic scores were assessed by a 3-point scale (negative, 0; equivocal, 1; and positive, 2). When the elastographic score for a lesion was 0 or 2, we downgraded or upgraded the B-mode category, respectively; thus, the reclassified Breast Imaging Reporting and Data System category was defined as the "reclassification category." Mean category values for benign and malignant lesions were compared by a Student t test. The diagnostic performance of B-mode, elastographic, and reclassification assessments was compared by receiver operating characteristic curve analysis. Results-The mean B-mode category (2.5 versus 1.7), elastographic score (1.7 versus 0.8), and reclassification category (3.2 versus 1.6) were significantly higher in malignant than benign lesions (P < .001). The area under the curve for reclassification assessment was significantly higher than that for B-mode sonography (0.916 versus 0.795; P < .05). With a cutoff value between 1 and 2, the specificity was increased from 26.5% to 42.9% after reclassification. Conclusions-For differentiation between benign and malignant circumscribed breast masses, combined use of B-mode sonography and elastography could provide a better diagnostic performance than B-mode sonography alone.
URI
http://onlinelibrary.wiley.com/doi/10.7863/ultra.14.11027/abstract;jsessionid=201744E7BA85E2ADF6FAA426E43FE781.f04t03http://hdl.handle.net/20.500.11754/29112
ISSN
0278-4297; 1550-9613
DOI
http://dx.doi.org/10.7863/ultra.14.11027
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COLLEGE OF MEDICINE[S](의과대학) > MEDICINE(의학과) > Articles
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