Abstract
To explore the value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in monitoring therapy responses and analyze the predictive value of tumor biomarkers in neoadjuvant chemotherapy for breast cancer. From August 2010 to August 2013, the patients diagnosed as primary invasive breast cancer were admitted into this multi-center study. All of them received 6 cycles of neoadjuvant chemotherapy and DCE-MRI during the procedure and underwent surgery. The associations between clinical therapy response and pathologic response as well as predictive factors were analyzed. As for evaluating neoadjuvant treatment response, DCE-MRI had statistically significant correlations with histopathology. PR negativity, HER-2 over-expression and high Ki-67 index were statistically correlated with pathologic complete response (pCR) (P < 0.05). DCE-MRI is a reliable method of assessing the response of neoadjuvant therapy for breast cancer. And the immunohistochemistry status of PR, HER-2 and Ki-67 were related with pCR.
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