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KMID : 1114620160130010008
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Journal of the Korean Society for Breast Screening
2016 Volume.13 No. 1 p.8 ~ p.13
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US-guided Core Biopsy in BI-RADS 3 & 4 Breast Lesions; Four-year Outcome Analysis in a Single Institution
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Choi Seung-Hee
Han Boo-Kyung
Ko Eun-Young
Ko Eun-Sook
Choi Ji-Soo
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Abstract
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Purpose: To evaluate the distribution of BI-RADS category and histologic outcome of BI-RADS 4 and 3 lesions undergoing ultrasound-guided core biopsy (UCB) during 4 years in a single institution and to analyze the annual trend of BI-RADS distribution and malignancy rate in each category.
Materials and Methods: We identified 6,932 lesions of 6,340 subjects undergoing UCB from 2012 to 2015 at a single institution. BI-RADS category and histological results for each target were assessed. Numbers of total targets and BI-RADS 4 and 3 lesions, malignancy and high-risk lesion rate in each category were assessed.
Results: Among total 6,932 lesions, annual number of biopsies was 1,538, 1,787, 2,079, 1,528 from 2012 to 2015. BI-RADS 4 and 3 lesions were 61.1% and 20.6%, and the trend was not different between each year as 58.1-64.1% and 15.0-23.8%. Mean total PPV was 38.0% (range, 34.8- 43.3%) and mean malignancy rate in BI-RADS 4 and BI-RADS 3 was 32.9% (range, 31.2- 35.6%) and 1.5% (range, 0.5-3.0%), and the trend was not different.
Conclusion: The trend using UCB showed a similar trend for lesion distribution and PPV. The PPV of total UCB was reasonable as 38.0% and the malignancy rate in BI-RADS 3 lesions was acceptable as 1.5%.
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KEYWORD
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Breast neoplasms, US-guided breast biopsy, Breast screening
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