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KMID : 1114620110080020127
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Journal of the Korean Society for Breast Screening
2011 Volume.8 No. 2 p.127 ~ p.131
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Positive Predictive Values for Sonographic BI-RADS Assessment Categories by Different Age Groups
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Suh Hee-Jung
Herh Sun-Jin
Park Suk-Jin
Choi Ji-Soo
Kim Eun-Kyung
Moon Hee-Jung
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Abstract
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Purpose: To investigate positive predictive values (PPVs) of BI-RADS (Breast Imaging Reporting and Data System classification on US in women under age 50 and more than age 50.
Materials and Methods: Between May 2009 and October 2009, We reviewed 392 pathologically proven BIRADS category 3, 4, and 5 lesions of 370 patients retrospectively based on BI-RADS US lexicon. Including number of women were 121 patents of aged ≥ 50 (mean age 58.8, range 50~89) and 249 patients of aged < 50 (mean age 38.3, age range 18~49) PPVs for each categories were evaluated in different age groups. By generalized estimating equation.
Results: There were 88 benign lesions and 304 malignant lesions. The overall PPV of category 4 and combined category 3, 4, and 5 in women under aged 50 and below was 11.6% and 17.3% versus 25.6% and 33.3% in women aged 50 and above. There was significant positive association between the age-related PPVs and increased age in category 4 and category 3, 4 and 5 (p < 0.001).
Conclusion: PPVs of BI-RADS classification on US were significant difference in different age groups. Therefore, more attention should be paid to special age groups that we found sonographic categorization.
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KEYWORD
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BI-RADS (Breast Imaging Reporting and Data System), Ultrasonography, Positive predictive value, Age
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