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Summary of Comoto: Unpaired Cross-modal Lesion Distillation Improves Breast Lesion Detection in Tomosynthesis, by Muhammad Alberb et al.


CoMoTo: Unpaired Cross-Modal Lesion Distillation Improves Breast Lesion Detection in Tomosynthesis

by Muhammad Alberb, Marawan Elbatel, Aya Elgebaly, Ricardo Montoya-del-Angel, Xiaomeng Li, Robert Martí

First submitted to arxiv on: 24 Jul 2024

Categories

  • Main: Computer Vision and Pattern Recognition (cs.CV)
  • Secondary: Artificial Intelligence (cs.AI)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
This paper proposes a novel framework, CoMoTo, to improve lesion detection in Digital Breast Tomosynthesis (DBT) by leveraging mammography data. The authors develop two novel components: Lesion-specific Knowledge Distillation (LsKD) and Intra-modal Point Alignment (ImPA). LsKD selectively distills lesion features from a mammography teacher model to a DBT student model, disregarding background features. ImPA further enriches LsKD by ensuring the alignment of lesion features within the teacher before distilling knowledge to the student. The proposed framework outperforms traditional pretraining and image-level KD methods, achieving a 7% improvement in Mean Sensitivity under low-data settings.
Low GrooveSquid.com (original content) Low Difficulty Summary
This paper helps us get better at finding breast tumors using special X-ray pictures called Digital Breast Tomosynthesis (DBT). Right now, DBT is very good at finding tumors but takes longer to look at the pictures. The problem is that we don’t have enough information about how to make DBT better because it’s hard and expensive to get more data. One way to solve this issue could be to use information from a different type of picture called mammography, which is easier to take. This paper shows us how to do just that by creating a new system called CoMoTo. It uses two special techniques: one helps the DBT pictures learn from the mammography pictures and the other makes sure those pictures are looking at the same things. The result is that we can find tumors better using DBT, which could help doctors treat breast cancer more effectively.

Keywords

» Artificial intelligence  » Alignment  » Knowledge distillation  » Pretraining  » Student model  » Teacher model