M&M: Tackling False Positives in Mammography with a Multi-view and Multi-instance Learning Sparse Detector

MICCAI 2023

Yen Nhi Truong Vu*      Dan Guo*      Ahmed Taha      Jason Su      Thomas Paul Matthews

WhiteRabbit.AI

Abstract

Deep-learning-based object detection methods show promise for improving screening mammography, but high rates of false positives can hinder their effectiveness in clinical practice. To reduce false positives, we identify three challenges: (1) unlike natural images, a malignant mammogram typically contains only one malignant finding; (2) mammography exams contain two views of each breast, and both views ought to be considered to make a correct assessment; (3) most mammograms are negative and do not contain any findings. In this work, we tackle the three aforementioned challenges by: (1) leveraging Sparse R-CNN and showing that sparse detectors are more appropriate than dense detectors for mammography; (2) including a multi-view cross-attention module to synthesize information from different views; (3) incorporating multi-instance learning (MIL) to train with unannotated images and perform breast-level classification. The resulting model, M&M, is a Multi-view and Multi-instance learning system that can both localize malignant findings and provide breast-level predictions. We validate M&M's detection and classification performance using five mammography datasets. In addition, we demonstrate the effectiveness of each proposed component through comprehensive ablation studies.

Citation

@article{vu2023m,
	title={M\&M: Tackling False Positives in Mammography with a Multi-view and Multi-instance Learning Sparse Detector},
	author={Vu, Yen Nhi Truong and Guo, Dan and Taha, Ahmed and Su, Jason and Matthews, Thomas Paul},
	booktitle={International Conference on Medical Image Computing and Computer-Assisted Intervention},
	year={2023}
}