Highlights
- •Data from 1070 breast MRI studies was analyzed with focus on intra-mammary and extra-mammary findings.
- •MR-BI-RADS categories 4-5 had a 10-times higher risk for major extra-mammary findings (odds ratio 10.1, P < 0.01).
- •MR-BI-RADS categories 4-5 had a 3-times higher risk of a minor extra-mammary finding (odds ratio 3.2, P < 0.01).
- •Extra-mammary breast MRI findings are common, may have important implications and should be mentioned in the reported.
Abstract
Purpose
The purpose of this study was to analyze the prevalence of extra-mammary findings
in magnetic resonance imaging (MRI).
Materials and methods
Data from 1070 consecutive breast MRI studies was analyzed. MR-BI-RADS (Breast Imaging
Reporting and Data System) was used to classify the risk category.
Results
According to MR-BI-RADS, 915 (85.5%) of 1070 women were classified into MR-BI-RADS
categories 1–3, and 155 (14.5%) into MR-BI-RADS categories 4–5. MR-BI-RADS categories
4–5 had a 10-times higher risk for major extra-mammary findings (odds ratio 10.1,
P < 0.01).
Conclusion
Extra-mammary findings are common and may have important clinical consequences.
Abbreviations:
BI-RADS (breast imaging reporting and data system), MIP (maximum intensity projection), MRI (magnetic resonance imaging), FOV (field of view), EUSOMA (European Society of Breast Cancer Specialists), ROI (region of interest)Keywords
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Article info
Publication history
Published online: June 10, 2017
Accepted:
June 8,
2017
Received in revised form:
May 18,
2017
Received:
March 7,
2017
Identification
Copyright
© 2017 Published by Elsevier Inc.
