Observer variability and applicability of BI-RADS terminology for breast MR imaging: Invasive carcinomas as focal masses Journal Article


Authors: Kim, S. J.; Morris, E. A.; Liberman, L.; Ballon, D. J.; La Trenta, L. R.; Hadar, O.; Abramson, A.; Dershaw, D. D.
Article Title: Observer variability and applicability of BI-RADS terminology for breast MR imaging: Invasive carcinomas as focal masses
Abstract: OBJECTIVE. The purpose of this study was to assess whether the descriptive terminology and final assessment categories of the Breast Imaging Reporting and Data System (BI-RADS) lexicon can be used for breast carcinomas detected on MR imaging and to assess the inter- and intraobserver variabilities in the use of the descriptors and final assessment categories. MATERIALS AND METHODS. In 82 patients, 101 masses, including 68 infiltrating carcinomas and 33 benign lesions, were interpreted independently by four radiologists and described by BI-RADS terminology with respect to mass shape and margin and BI-RADS final assessment categories. The enhancement pattern of the mass was also reported. In addition, two radiologists interpreted each case twice to evaluate intraobserver variability. The final case set for analysis was the 68 infiltrating carcinomas. RESULTS. Most of the infiltrating carcinomas were described as irregular, spiculated, and heterogeneously enhancing masses. The final impression of the 68 carcinomas was BI-RADS category 5 (highly suggestive of malignancy) in 41 (61%), category 4 (suspicious abnormality) in 24 (35%), and category 3 (probably benign) in three (4%). Enhancement pattern was heterogeneous in 40 (59%), homogeneous in 14 (21%), and rim in 14 (21%). Interobserver agreement was moderate for mass margin, shape, enhancement, and final assessment category. CONCLUSION. This study suggests that the mammographic BI-RADS lexicon with some modifications may be applied to describe the features of infiltrating carcinoma seen on breast MR imaging.
Keywords: adult; aged; aged, 80 and over; middle aged; major clinical study; nuclear magnetic resonance imaging; magnetic resonance imaging; neoplasm staging; sensitivity and specificity; observer variation; breast; breast neoplasms; mammography; image enhancement; contrast enhancement; image quality; cancer infiltration; breast carcinoma; invasive carcinoma; gadolinium pentetate; carcinoma, ductal, breast; terminology; fibrocystic breast disease; humans; human; female; priority journal; article
Journal Title: American Journal of Roentgenology
Volume: 177
Issue: 3
ISSN: 0361-803X
Publisher: American Roentgen Ray Society  
Date Published: 2001-09-01
Start Page: 551
End Page: 557
Language: English
PUBMED: 11517046
PROVIDER: scopus
DOI: 10.2214/ajr.177.3.1770551
DOI/URL:
Notes: Export Date: 21 May 2015 -- Source: Scopus
Altmetric Score
MSK Authors
  1. D David Dershaw
    177 Dershaw
  2. Laura Liberman
    169 Liberman
  3. Orna Hadar
    3 Hadar
  4. Elizabeth A Morris
    253 Morris
  5. Douglas J Ballon
    35 Ballon