Automated Prediction of Breast Cancer Response to Neoadjuvant Chemotherapy from DWI Data

• URL: http://arxiv.org/abs/2404.05061v1
• Date: Sun, 7 Apr 2024 20:15:40 GMT
• Title: Automated Prediction of Breast Cancer Response to Neoadjuvant Chemotherapy from DWI Data
• Authors: Shir Nitzan, Maya Gilad, Moti Freiman,
• Abstract summary: We propose a deep learning model employing "Size-Adaptive Lesion Weighting" for automatic DWI tumor segmentation. Our model matches human experts in pCR prediction pre-NAC with an area under the curve (AUC) of 0.76 vs. 0.796, and surpasses standard automated methods mid-NAC.
• Score: 2.321323878201932
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Effective surgical planning for breast cancer hinges on accurately predicting pathological complete response (pCR) to neoadjuvant chemotherapy (NAC). Diffusion-weighted MRI (DWI) and machine learning offer a non-invasive approach for early pCR assessment. However, most machine-learning models require manual tumor segmentation, a cumbersome and error-prone task. We propose a deep learning model employing "Size-Adaptive Lesion Weighting" for automatic DWI tumor segmentation to enhance pCR prediction accuracy. Despite histopathological changes during NAC complicating DWI image segmentation, our model demonstrates robust performance. Utilizing the BMMR2 challenge dataset, it matches human experts in pCR prediction pre-NAC with an area under the curve (AUC) of 0.76 vs. 0.796, and surpasses standard automated methods mid-NAC, with an AUC of 0.729 vs. 0.654 and 0.576. Our approach represents a significant advancement in automating breast cancer treatment planning, enabling more reliable pCR predictions without manual segmentation.

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