超声造影在常规超声 BI-RADS 4 类病变中的应用 ——与 DCE-MRI 的对比研究.

Objective To compare contrast -enhanced ultrasound (CEUS) and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in the diagnosis of BI-RADS 4 breast lesions. Methods 86 lesions were underwent by ultrasonic CEUS and DCE-MRI. Using the pathologic findings as the gold standard, the diagnostic sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of 86 lesions on CEUS and DCE-MRI were calculated. Results In 65 malignant and 21 benign lesions, the 89.23% sensitivity, 80.95% specificity, 93.55% PPV and 70.83% NPV of CEUS were not significantly different from that of DCE-MRI (92.31%, 85.71%, 95,24%, 78.26%). Conclusion CEUS is valuable in the differential diagnosis of BI-RADS 4 breast lesions and has a good agreement with DCE-MRI. [ABSTRACT FROM AUTHOR]