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| The Interobserver Variability and Diagnostic Performance
of 3-Dimensional Breast Ultrasound |
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| Chae Yeon Lyou, MD Sun Mi Kim, MD, Mijung Jang, MD, Sung-Won Kim, MD2,
Eunyoung Kang, MD2, So Yeon Park, MD3, Woo Kyung Moon, MD4 |
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| 1Department of Radiology, Seoul National University Bundang Hospital
2Department of Surgery, Seoul National University Bundang Hospital
3Department of Pathology, Seoul National University Bundang Hospital
4Department of Radiology, Seoul National University Hospital |
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| Purpose: We wanted to evaluate the interobserver variability and diagnostic performance
of 3-dimensional (3D) breast ultrasound (US) as compared with that of 2-
dimensional (2D) US.
Materials and Methods: We included 150 patients who received US-guided core
biopsy and 3D US between June 2009 and April 2010. Three breast imaging radiologists
analyzed the 2D and 3D US images using the Breast Imaging Reporting and
Data System (BI-RADS) lexicon. The intra-observer agreement and inter-observer
agreement were calculated. The sensitivity and specificity of 2D and 3D US were
evaluated.
Results: The intra-observer agreement between 2D and 3D US was mostly slight
or fair agreement. However, in terms of the final category, there was substantial
agreement for all three radiologists. The inter-observer agreement of 3D US was similar
to that of 2D US (moderate agreement for shape, orientation, circumscribed margin
and boundary; fair agreement for indistinct margin, angular margin, microlobulated
margin, echo pattern and final category). The sensitivity of 3D US for breast cancer
was higher than that of 2D US for two radiologists (2D vs. 3D for reader 2: 55.8% vs.
61.5%, 2D vs. 3D for reader 3: 59.6% vs. 63.5%), and the specificity of 3D US was
lower than that of 2D US for all the readers (2D vs. 3D for reader 1: 90.8% vs. 86.7%,
2D vs. 3D for reader 2: 90.8% vs. 87.8%, 2D vs. 3D for reader 3: 94.9% vs. 90.8%),
but the difference was not significant (p ≥ 0.05).
Conclusion: The interobserver variability and diagnostic performance of 3D breast
US were similar to those of 2D US. |
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| Keyword : Breast, Ultrasound; 3-dimensional, Ultrasound |
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pdf파일 : 209-215류채연.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2011 ; 30 (3) : p.209-215
