Abstract
Background
The purpose of this study was to evaluate the diagnostic value and clinical significance of three-dimensional MR imaging of the breast in patients with mammographically detected suspicious microcalcifications.
Methods
Forty patients with suspicious microcalcifications on mammography were evaluated with three-dimensional MR imaging. MR findings were grouped mainly by distribution of abnormal enhancement (linear, focal-clumped, segmental-clumped, segmental-stippled and diffuse-stippled). These findings were compared with the mammography findings according to the criteria of the Breast Imaging Reporting and Data System (BI-RADS) and histopathologic data.
Results
Twenty patients had proven malignancies, most frequently ductal carcinomain situ. For all the cases, linear (100%) and segmental-clumped type (100%) enhancement on MR imaging showed a significantly higher risk for malignancy. Diffuse stippled type (7%) and no enhancement (0%) on MR imaging indicated the lowest possibility of malignancy. 3D-MR imaging showed a sensitivity of 90%, a specificity of 95% and an overall accuracy of 93% in this study.
Conclusions
Three-dimensional MR imaging of the breast can more accurately diagnose ductal carcinomain situ. Combined with mammography, this procedure is useful for reducing the number of false-positive biopsies and helpful for deciding the better management of patients with mammographically detected suspicious microcalcifications.
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Abbreviations
- DCIS:
-
Ductal carcinomain situ
- MIP:
-
Maximum intensity projection
- MPR:
-
Multiplanar reconstruction
- MLO:
-
Mediolateral oblique
- CC:
-
Craniocaudal
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Nakahara, H., Namba, K., Fukami, A. et al. Three-dimensional mr imaging of mammographically detected suspicious microcalcifications. Breast Cancer 8, 116–124 (2001). https://doi.org/10.1007/BF02967490
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DOI: https://doi.org/10.1007/BF02967490