• Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
PENGYu-lan, Email: yulanpeng@163.com
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Objective To establish logistic regression analysis model to evaluate the diagnostic efficacy of breast imaging report and data system (BI-RADS) ultrasound signs in forecasting malignant risk of breast lesions. Method Ultrasound graphic materials of 1 660 breast lesions diagnosed during January to September 2011 were retrospectively studied and standardized by BI-RADS. Pathology results were regarded as gold standard reference. Ultrasound signs with significant efficacy after single-factor logistic regression were evaluated in multi-factor logistic regression model to predict the malignant risk of breast lesions. Results Eighteen ultrasound signs of breast lesions on BI-RADS were included in the final regression model. Among them, Cooper ligaments stretch, echogenic halo, skin thickening, axillary lymph node abnormalities, structural distortions and speculation had high OR values of 30 or more and had higher specificity than 90%. The diagnosis values of regressions model were high, with a sensitivity of 84.5%, specificity 95.5% and accuracy 91.4%. The area under ROC curve was 0.964 and prediction accuracy was 91.0%. Conclusions The logistic regression model based on BI-RADS ultrasound signs of breast lesions has high diagnostic values in detecting breast cancer.

Citation: ZHAOHai-na, PENGYu-lan, LUOHong-hao, HEYu-shuang, JINYa, YANGPan. A Logistic Regression Model Based on Breast Imaging Report And Data System Lexicon to Predict the Risk of Malignancy. West China Medical Journal, 2015, 30(12): 2249-2253. doi: 10.7507/1002-0179.20150645 Copy

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