关键词: 乳腺疾病, 阳性预测值, 超声, 年龄, 乳腺影像报告及资料系统

Abstract: Objective To calculate the positive predictive value（PPV）of the Ultrasound section of the American College of Radiology Breast Imaging Reporting and Data System（ACR BI?RADS US）Atlas Categories 3 to 5 in different age groups and to determine whether patient age influences the PPV of each category in the diagnosis of breast lesions. Methods Using our database from June 2014 to June 2016， we identified 4428 ACR BI?RADS US categories 3 and 5 lesions with a known pathological diagnosis in 4428 women. The patients were classified into three age groups（<35，35~50，and >50 years）. The agerelated PPVs of each category in the three age groups were calculated based on the pathological diagnoses and compared using the chi squared test. Results PPV gradually increased with increasing age in patients with category 3 and 4 lesions. PPVs in the oldest group with categories 3 to 4B lesions were close to or exceeded the reference values. Conclusion PPV and age were significantly associated in patients with category 3 and 4 lesions according to the newest edition of ACR BI?RADS US in the diagnostic setting. Closer attention should be given to older patients when assigning a final assessment category.

Key words: Breast Imaging Reporting and Data System, ultrasound, breast disease, age, positive predictive value