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KMID : 1114620150120010017
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Journal of the Korean Society for Breast Screening
2015 Volume.12 No. 1 p.17 ~ p.21
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Analysis of Characteristics of MRI Detected Addition Lesion with Digital Breast Tomosynthesis
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Chang Jung-Min
Shin Hee-Jung
Ko Eun-Sook
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Abstract
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Purpose: To evaluate the potential role of digital breast tomosynthesis (DBT) to characterize MR detected additional findings in patient with breast cancer.
Materials and Methods: Between March and December 2012, a total of 172 patients with known breast cancers underwent digital mammography with tomosynthesis, and breast MRI. Among those patient, additional detected lesion on MRI with higher than BI-RADS category score of 3 or BI-RADS category 0 lesions were included. Three expert breast radiologists independently reviewed digital tomosynthesis images to assess whether those lesions are able to identify on DBT with information of MRI.
Results: There were 70 additional enhancing lesions (mean size ± SD: 1.23 ± 0.9 cm) in 66 patients, and 16 lesions were malignant and 54 were benign. In 70 lesions, DBT identified 17 additional enhancing lesions (24%) in reader 1, 20 lesions (29%) in reader 2, 23 (33%) lesions in reader 3. Among 16 malignant lesions, 3-6 lesions were identified (19-38%). There was only a tendency to be mass type lesion than nonmass type lesion on MRI for DBT identified lesion (P = 0.075), but no significant correlation was noted for pathology (P = 0.474), MRI lesion size (P = 0.158), and MRI lesion category (P = 0.474) between DBT identified and non- identified lesions.
Conclusion: Only a small portion of MR detected additional lesions were identified with DBT, and one third of malignancy were visible on DBT which were detected by MRI.
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KEYWORD
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Digital breast tomosynthesis, Breast MRI
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