Mr. Omkar Saiswaroop Varma Chekuri Profile

Omkar Saiswaroop Varma Chekuri

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Proceedings Article | 3 April 2024 Presentation + Paper

David vs. Goliath: large foundation models are not outperforming small models in multi-view mammogram breast cancer prediction

Xuxin Chen, Mingzhe Hu, Ke Zhang, Neman Abdoli, Youkabed Sadri, Patrik Gilley, Omkar Saiswaroop Varma Chekuri, Farid Omoumi, Yuchen Qiu, Bin Zheng, Xiaofeng Yang

Proceedings Volume 12927, 129270X (2024) https://doi.org/10.1117/12.3007054

KEYWORDS: Mammography, Transformers, Breast cancer, Medical image processing, Deep learning, Computer aided detection

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Recent Foundation Models have begun to yield remarkable successes across various downstream medical imaging applications. Yet, their potential within the context of multi-view medical image analysis remains largely unexplored. This research aims to investigate the feasibility of leveraging foundation models for predicting breast cancer from multiview mammograms through parameter-efficient transfer learning (PETL). PETL was implemented by inserting lightweight adapter modules into existing pre-trained transformer models. During model training, the parameters of the adapters were updated while the pre-trained weights of the foundation model remained fixed. To assess the model's performance, we retrospectively assembled a dataset of 949 patients, with 470 malignant cases and 479 normal or benign cases. Each patient has four mammograms obtained from two views (CC/MLO) of both the right and left breasts. The large foundation model with 328 million (M) parameters, finetuned with adapters comprising only 3.2M tunable parameters (about 1% of the total model parameters), achieved a classification accuracy of 78.9% ± 1.7%. This performance was competitive but slightly inferior to a smaller model with 36M parameters, finetuned using traditional methods, which attained an accuracy of 80.4% ± 0.9%. The results suggest that while foundation models possess considerable potential, their efficacy in medium-sized datasets and in transitioning from single-view to multi-view image analysis, particularly where reasoning feature relationships across different mammographic views is crucial, can be challenging. This underscores the need for innovative transfer learning approaches to better adapt and generalize foundation models for the complex requirements of multi-view medical image analysis.

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