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Abstract #0856

Deep learning models for predicting responses to neoadjuvant systemic therapy in triple-negative breast cancer using pre-treatment MRI

Zhan Xu1, Jong Bum Son1, Beatriz E. Adrada2, Tanya W. Moseley2, Rosalind P. Candelaria2, Mary S. Guirguis2, Miral M Patel2, Gary J Whitman2, Jessica W. T. Leung2, Huong T. C. Le-Petross2, Rania M Mohamed2, Sanaz Pashapoor2, Bikash Panthi1, Deanna L Lane2, Frances Perez2, Huiqin Chen3, Jia Sun3, Peng Wei3, Debu Tripathy4, Wei Yang2, Clinton Yam4, Gaiane M. Rauch2, and Jingfei Ma1
1Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States, 2Department of Breast Imaging, The University of Texas MD Anderson Cancer Center, Houston, TX, United States, 3Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX, United States, 4Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States

Synopsis

Keywords: Diagnosis/Prediction, Cancer

Motivation: Neoadjuvant systemic therapy (NAST) followed by surgery is the standard of care for triple-negative breast cancer (TNBC) patients. However, only approximately half of these patients achieve pathological complete response (pCR).

Goal(s): To build a prediction model to identify non-pCR patients before the initiation of NAST.

Approach: We evaluated multiple prediction models using pretreatment multi-parametric MRI from a cohort of 282 TNBC patients.

Results: Our findings revealed that combined with clinical information, the best-performing model achieved an AUC of 0.74 on an independent testing set. We further observed that the performance of our models is not sensitive to the voxel selections in tumor segmentation.

Impact: Deep learning models for predicting pathological complete response to neoadjuvant systemic therapy of triple-negative breast cancer were developed using baseline multi-parametric MRI data and clinical information and achieved an AUC of 0.74 on the independent testing dataset.

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Keywords