연령에 따른 유방 초음파의 양성 예측도 비교

Abstract

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