Application of elastic index difference in identification of benign and malignant masses of breast imaging reporting and data system 3-5
10.13929/j.1003-3289.201609103
- VernacularTitle:弹性指数差在鉴别乳腺影像报告数据系统3～5类乳腺肿块良恶性中的应用
- Author:
Hanzhong HU
;
Songsong ZHANG
;
Yongzheng CAO
- Keywords:
Breast neoplasms;
Ultrasonography;
Elasticity imaging techniques;
Elastic index difference
- From:Chinese Journal of Medical Imaging Technology
2017;33(5):662-665
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the application value of elastic index difference (EID) in identifying benign or malignancy masses of breast imaging reporting and data system (BI-RADS) 3-5.Methods Data of 193 lesions in 164 patients with ultrasonic diagnosed as BI-RADS 3-5 breast masses were retrospectively analyzed.All the cases were confirmed pathologically.The EID of masses and normal glands were measured with elastography quantitative analysis software.BIRADS 3-5 breast masses were diagnosed as malignant when EID≥2.5,which was the criteria for BI-RADS reclassification.ROC curve was drawn,and the area under the curve (AUC) was calculated.The diagnostic accuracy and AUC of malignant breast tumors with the methods of BI-RADS and BI-RADS combined with EID were compared.Results Taking pathological results as gold standard,the sensitivity,specificity,accuracy of BI-RADS in detecting malignant tumors were 96.00％ (72/75),67.80％ (80/118),78.76％ (152/193),and those of BI-RADS combined with EID were 97.33％ (73/ 75),83.05％ (98/118),88.60％ (171/193),respectively.The AUC of BI-RADS combined with EID (0.931) was higher than that of BI-RADS (0.875;Z=2.06,P＜0.05).The statistical difference of accuracy was found between BI-RADS and BI-RADS combined with EID methods (x2 =15.21,P＜0.05).Conclusion The combination of BI-RADS and EID is better than simple using BI-RADS in identifying benign or malignancy of breast tumors.
