Value of strain elastography in the classification diagnosis of US BI-RADS 4 A breast pathologic lesion
10.3969/j.issn.1009-0754.2016.06.012
- VernacularTitle:应变弹性成像对 BI-RADS 4 A级乳腺病变分类诊断的价值
- Author:
Caiqin PENG
1
;
Ke BI
;
Baozhen ZHAO
;
Hongchen ZHOU
;
Yin WANG
Author Information
1. 江苏省灌云县人民医院超声科
- Keywords:
Strain elastography;
Breast lesion;
US BI-RADS
- From:
Journal of Navy Medicine
2016;37(6):519-521,535
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore whether strain elastography could improve the classification diagnosis of US BI -RADS 4A breast pathologic lesion .Methods Eighty-seven breast foci of the 75 patients diagnosed with the two-dimensional color Doppler ultra-sonography as BI-RADS 4A were selected for the study , and then, strain elastography was performed .The modified 5-point method was used for further evaluation , and BI-RADS classification was performed again with the help of the two-dimensional color Doppler ultra-sonography.The cases with the scores of ≥4 were upgraded as the 4B-C grade, the cases with the scores of =3 remained in the same grade, and the cases with the scores of <3 were downgraded to be the third grade .The results were compared with the pathological re-sults.Results Of the 87 breast lesions, 6 were evaluated to have elasticity scores of ≥4, 11 were assessed to have elasticity scores of=3, and 70 were assessed to have elasticity scores of <3.There were 8 malignant tumors confirmed by pathological examination in the 87 breast lesions, of which 8 lesions had elasticity scores of ≥4, 3 lesions had elasticity scores of =3, and 2 lesions had elasticity scores of <3.With the elasticity scores of ≥3 and <3 as the standards for respectively malignant and benign tumors , the sensitivity, specificity and accuracy of the method for detecting malignant tumors were respectively 75%, 86.1% and 85.1%, and the negative predictive value (NPV) was 97.1%, which was superior to that of conventional ultrasonography (P<0.05).With further classification of BI-RADS in combined use of elastography , the malignancy rate in the benign group was reduced to 2.8%and the malignancy rate in the malignant group was increased to 35.3%, and significant differences could be noted , when compared with those previous figures ( P<0.05).Conclusion Elastography could effectively promote the classification diagnostic accuracy of BI -RADS 4A breast pathologic lesion
and could considerably reduce the rate of biopsy before surgery .With this reason , it promised good clinical application .
