Testing the Segment Anything Model on radiology data

• URL: http://arxiv.org/abs/2312.12880v2
• Date: Thu, 16 May 2024 08:06:44 GMT
• Title: Testing the Segment Anything Model on radiology data
• Authors: José Guilherme de Almeida, Nuno M. Rodrigues, Sara Silva, Nickolas Papanikolaou,
• Abstract summary: The Segment Anything Model (SAM) was recently proposed and stands as the first foundation model for image segmentation. We show that while acceptable in a very limited set of cases, the overall trend implies that these models are insufficient for MRI segmentation. We note that while foundation models trained on natural images are set to become key aspects of predictive modelling, they may prove ineffective when used on other imaging modalities.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Deep learning models trained with large amounts of data have become a recent and effective approach to predictive problem solving -- these have become known as "foundation models" as they can be used as fundamental tools for other applications. While the paramount examples of image classification (earlier) and large language models (more recently) led the way, the Segment Anything Model (SAM) was recently proposed and stands as the first foundation model for image segmentation, trained on over 10 million images and with recourse to over 1 billion masks. However, the question remains -- what are the limits of this foundation? Given that magnetic resonance imaging (MRI) stands as an important method of diagnosis, we sought to understand whether SAM could be used for a few tasks of zero-shot segmentation using MRI data. Particularly, we wanted to know if selecting masks from the pool of SAM predictions could lead to good segmentations. Here, we provide a critical assessment of the performance of SAM on magnetic resonance imaging data. We show that, while acceptable in a very limited set of cases, the overall trend implies that these models are insufficient for MRI segmentation across the whole volume, but can provide good segmentations in a few, specific slices. More importantly, we note that while foundation models trained on natural images are set to become key aspects of predictive modelling, they may prove ineffective when used on other imaging modalities.

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