Develop and Validate a Nomogram Combining Contrast-Enhanced Spectral Mammography Deep Learning with Clinical-Pathological Features to Predict Neoadjuvant Chemotherapy Response in Patients with ER-Positive/HER2-Negative Breast Cancer
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Summary
This summary is machine-generated.A new nomogram combining contrast-enhanced spectral mammography (CESM) deep learning and clinical data accurately predicts neoadjuvant chemotherapy (NAC) response in ER-positive/HER2-negative breast cancer patients. This tool offers improved prediction over existing models.
Area Of Science
- Oncology
- Radiology
- Artificial Intelligence
Background
- Accurate prediction of neoadjuvant chemotherapy (NAC) response is crucial for managing ER-positive/HER2-negative breast cancer.
- Current prediction methods may not fully leverage advanced imaging and clinical data.
Purpose Of The Study
- To develop and validate a nomogram integrating contrast-enhanced spectral mammography (CESM) deep learning features with clinical-pathological data.
- To predict NAC response (low vs. high Miller Payne grades) in ER-positive/HER2-negative breast cancer patients.
Main Methods
- A retrospective study of 265 patients with ER-positive/HER2-negative breast cancer.
- Deep learning models (ResNet34) trained on CESM images, combined with clinical-pathological features (age, PR, ER, Ki67, neutrophil-to-lymphocyte ratio).
- Nomogram development using logistic regression and stepwise selection; evaluation via ROC curves, precision-recall curves, and decision curve analysis (DCA).
Main Results
- The nomogram demonstrated superior predictive performance compared to deep learning-based and clinical models.
- Key metrics for the nomogram included high area under the ROC curve (0.95), accuracy (0.94), specificity (0.98), and positive predictive value (0.89).
- Decision curve analysis indicated significant clinical utility for the nomogram in treatment decision-making.
Conclusions
- The developed nomogram effectively predicts NAC response in ER-positive/HER2-negative breast cancer.
- Integrating CESM deep learning with clinical-pathological features enhances predictive accuracy.
- The nomogram shows promise as a valuable tool for personalized breast cancer treatment strategies.

