To explore the diagnostic value of contrast-enhanced ultrasound (CEUS) with Breast Imaging Reporting and Date System (BI-RADS) classification in the diagnosis of benign and malignant breast non-mass-like lesion (NML).
Methods:
A total of 182 cas
es of NML diagnosed by ultrasound were included. After classified by BI-RADS
all the lesions underwent CEUS. Multivariate logistic regression models were established for CEUS to diagnose breast malignancy. And then classified by BI-RADS according to the characteristics of CEUS thus compared with conventional ultrasound BI-RADS. The diagnostic performance of BI-RADS were compared between conventional ultrasound and CEUS.
Results:
The CEUS features of benign and malignant NML were significantly different in terms of enhancement intensity
lesions sizes after enhancement
enhancement time
peripheral radial enhancement
and visualization of penetrating vessel (
P
<0.05). The BI-RADS classification between conventional ultrasound and CEUS were different significantly (
P
<0.05). The sensitivity
specificity
accuracy
positive predictive value (PPV)
and negative predictive value (NPV) of the conventional ultrasound BI-RADS in diagnosis of malignant lesions were 75.28%
56.98%
65.93%
62.62% and 70.67%
respectively (area under curve=0.661; 95% CI: 0.582-0.741). The sensitivity
specificity
accuracy
PPV
and NPV of CEUS BI-RADS in diagnosis of malignant lesions were 93.26%
74.19%
83.52%
76.15% and 92.00%
respectively (area under curve=0.837; 95% CI: 0.775-0.899).
Conclusion:
CEUS with BI-RADS classification can remarkably improve the diagnosis efficacy of benign and malignant breast NML
reduce biopsy and contribute to clinical management.