Reproducibility of mammographic parenchymal patterns and Breast Density on Full-Field Digital Mammography (FFDM): comparison of the two classification systems
Objective: The aim of the study is to compare inter-observer agreement between general radiologists in the classification of mammographic breast density using TABAR’s pattern and BI-RADS classification from two-view Full-Field Digital Mammography (FFDM). Methods: A data set of 400 mammograms was...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Medicine, International Islamic University Malaysia
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/39216/ http://irep.iium.edu.my/39216/ http://irep.iium.edu.my/39216/1/39216.pdf |
| Summary: | Objective: The aim of the study is to compare inter-observer agreement between general radiologists in the classification
of mammographic breast density using TABAR’s pattern and BI-RADS classification from two-view Full-Field Digital
Mammography (FFDM).
Methods: A data set of 400 mammograms was evaluated by three general radiologists. The radiologists independently
reviewed the images and classified the parenchymal pattern according to BI-RADS and TABAR classification systems.
Inter-observer agreements were analyzed using kappa statistics.
Results: Inter-observer agreement for the BI-RADS is slight to fair (Reviewer 1 versus Reviewer 2: k=0.19, Reviewer
1 versus Reviewer 3, k=0.07 and Reviewer 2 versus Reviewer 3, k=0.49) and for TABAR is fair to moderate (Reviewer
1 versus Reviewer 2: k=0.23, Reviewer 1 versus Reviewer 3, k=0.31 and Reviewer 2 versus Reviewer 3, k=0.50).
Conclusion: Our study demonstrates a poor level of agreement in breast parenchymal pattern and density based on both
BI-RADS and TABAR classifications. Thus, breast density in risk stratification of breast cancer should be used with
caution in our local practice. |
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