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Intra-observer Reproducibility and Diagnostic Performance of Breast Shear-Wave Elastography in Asian Women

Authors
Journal
Ultrasound in Medicine & Biology
0301-5629
Publisher
Elsevier
Volume
40
Issue
6
Identifiers
DOI: 10.1016/j.ultrasmedbio.2013.12.021
Keywords
  • Shear-Wave Elastography
  • Elastography
  • Breast
  • Ultrasonography
  • Intra-Observer Reproducibility
Disciplines
  • Medicine

Abstract

Abstract Our aim was to evaluate intra-observer reproducibility of shear-wave elastography (SWE) in Asian women. Sixty-four breast masses (24 malignant, 40 benign) were examined with SWE in 53 consecutive Asian women (mean age, 44.9 y old). Two SWE images were obtained for each of the lesions. The intra-observer reproducibility was assessed by intra-class correlation coefficients (ICC). We also evaluated various clinicoradiologic factors that can influence reproducibility in SWE. The ICC of intra-observer reproducibility was 0.789. In clinicoradiologic factor evaluation, masses surrounded by mixed fatty and glandular tissue (ICC: 0.619) showed lower intra-observer reproducibility compared with lesions that were surrounded by glandular tissue alone (ICC: 0.937; p < 0.05). Overall, the intra-observer reproducibility of breast SWE was excellent in Asian women. However, it may decrease when breast tissue is in a heterogeneous background. Therefore, SWE should be performed carefully in these cases.

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