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KMID : 1114620210180010047
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Journal of the Korean Society for Breast Screening
2021 Volume.18 No. 1 p.47 ~ p.52
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Benefits of Digital Breast Tomosynthesis-Guided Biopsy Compared to Stereotactic Biopsy
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Lee Si-Eun
Kim Myung-Hyun
Kim Ju-Hyun
Choi Ji-Eun
Kim Eun-Kyung
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Abstract
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Purpose: As digital breast tomosynthesis (DBT) has been increasingly used in breast cancer screening, we evaluated benefits of DBT-guided biopsy compared to stereotactic biopsy.
Materials and Methods: From April 2020 to January 2021, 20 patients who underwent digital breast tomosynthesis (DBT)-guided biopsy or stereotactic biopsy were included. We compared the success rates, examination times and exposure doses of DBT-guided and stereotactic biopies.
Results: All 20 patients had suspicious microcalcification on screening mammography. Among them, 14 patients underwent DBT-guided biopsy and 6 underwent stereotactic biopsy. Four patients were diagnosed with ductal carcinoma in situ and the rest were benign pathology. DBT-guided biopsy reduced the number of scans and radiation dose compared to stereotactic biopsy (mean 12.8 ± 3.4 mGy to 5.6 ± 2.1 mGy, P<0.001). Examination time tended to decrease with DBT-guided biopsy without statistical significance (mean 15.2 ± 7.4 min to 10.2 ± 3.0 min, P=0.131).
Conclusion: DBT-guided biopsy has advantages over conventional stereotactic biopsy, especially in reducing the radiation dose and examination time.
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KEYWORD
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Digital Mammography, Digital Breast Tomosynthesis, Image-Guided Biopsy
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