A detailed criterion of BI-RADS assessment category based on US-BI-RADS: a preliminary study
10.3760/cma.j.issn.1004-4477.2015.03.019
- VernacularTitle:建立乳腺超声BI-RADS评估分类评分标准的初步研究
- Author:
Haina ZHAO
;
Yulan PENG
;
Honghao LUO
;
Yushuang HE
;
Ya JIN
;
Pan YANG
- Publication Type:Journal Article
- Keywords:
Ultrasonography;
Breast diseases;
Breast imaging reporting and data system
- From:
Chinese Journal of Ultrasonography
2015;24(3):242-245
- CountryChina
- Language:Chinese
-
Abstract:
Objective To set up an objective criterion for BI-RADS assessment.Methods The breast sonograms of 1 938 female cases were retrospectively studied which had been confirmed by pathology from January to September 2011 and 2012 January.1 660 cases during 2011 were model cases,and the importance of each single feature in distinguishing between benign and malignant was obtained with Chi square and OR value.A detailed criterion of BI-RADS assessment category was set up based on US-BI-RADS.Results Eighteen of 24 lexicons were statistically significant distinguished between benign and malignant breast masses(P ＜ 0.05).The lexicons were divided into major suspicious signs,middle ones and minor ones assigned 3 points,2 points and 1 point,and a scoring model was established as follows:Score =3 * (X1 + X2 + … + X6) + 2 * (X7 + X8 + … + X12) + (X9 + X10 + … + X18).Based on BI-RADS,the positive predictive value of model cases was 1.5％,6.9％,22.1％,62.5％,96.1％ followed by category 3,4A,4B,4C and 5,and it was 1.4％,3.4％,21.1％,69.4％,92.7％ in test cases.Conclusions The scoring model could be useful for BI-RADS final assessment more objectively,and could make it more convenient to predict the risk of breast cancer.
