Cited by 107Domain Adaptation and Few-Shot LearningData Stream Mining TechniquesMedical Image Segmentation Techniques

Dynamic Memory to Alleviate Catastrophic Forgetting in Continual Learning with Medical Imaging

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Perkonigg, Matthias, Hofmanninger, Johannes, Herold, Christian J., Brink, James A., Pianykh, Oleg, Prosch, Helmut, Langs, Georg·2021·Nature Communications

Abstract

Medical imaging is a central part of clinical diagnosis and treatment guidance. Machine learning has increasingly gained relevance because it captures features of disease and treatment response that are relevant for therapeutic decision-making. In clinical practice, the continuous progress of image acquisition technology or diagnostic procedures, the diversity of scanners, and evolving imaging protocols hamper the utility of machine learning, as prediction accuracy on new data deteriorates, or models become outdated due to these domain shifts. We propose a continual learning approach to deal with such domain shifts occurring at unknown time points. We adapt models to emerging variations in a continuous data stream while counteracting catastrophic forgetting. A dynamic memory enables rehearsal on a subset of diverse training data to mitigate forgetting while enabling models to expand to new domains. The technique balances memory by detecting pseudo-domains, representing different style clusters within the data stream. Evaluation of two different tasks, cardiac segmentation in magnetic resonance imaging and lung nodule detection in computed tomography, demonstrate a consistent advantage of the method.

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  1. [11]Delange, M. et al. A continual learning survey: defying forgetting in classification tasks. IEEE Trans. Pattern Anal. Mach. Intelli. https://10.1109/TPAMI.2021 (2021). 33544669 · DOI
  2. [19]Lopez-Paz, D. & Ranzato, M. Gradient episodic memory for continual learning. Adv. Neural Inf. Process. Syst.30, 6467–6476 (2017).
  3. [27]Glocker, B., Robinson, R., Castro, D. C., Dou, Q. & Konukoglu, E. Machine learning with multi-site imaging data: an empirical study on the impact of scanner effects. Preprint at https://arxiv.org/abs/1910.04597 (2019). · arXiv

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Authors
Perkonigg, M., Hofmanninger, J., Herold, C. J., Brink, J. A., Pianykh, O., Prosch, H., & Langs, G.
Affiliations
  • Medical University of Vienna (AT)
  • Harvard University (US)
Corresponding author
Langs, Georg
Venue
Nature Communications
Published
2021-09-28
Volume
12
Issue
1
Pages
5678-5678
ISSN
2041-1723 (ISSN-L)
OpenAlex
W3202253200
Cited by
106
References
61
Citations by year
2026: 24 · 2025: 28 · 2024: 15 · 2023: 23 · 2022: 14 · 2021: 2
FWCI
4.75
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Boehringer Ingelheim
  • European Commission (780495, 765148)
  • Austrian Science Fund (P34198, P35189)
  • Oesterreichische Nationalbank (18207)
  • Novartis Pharmaceuticals Corporation
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Domain Adaptation and Few-Shot Learning
  • Physical Sciences › Computer Science › Artificial Intelligence › Data Stream Mining Techniques
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Medical Image Segmentation Techniques
Keywords
catastrophic forgetting, continual learning, dynamic memory, domain shift, diagnostic imaging, cardiac image segmentation, lung nodule detection, magnetic resonance imaging, computed tomography, model updating
MeSH terms
Machine Learning, Diagnostic Imaging, Humans, Learning, Lung, Memory, Tomography, X-Ray Computed, Neural Networks, Computer

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