Abstract
Deep learning based MRI reconstruction methods typically require databases of fully-sampled data as reference for training. However, fully-sampled acquisitions may be either challenging or impossible in numerous scenarios. Self-supervised learning enables training neural networks for MRI reconstruction without fully-sampled data by splitting available measurements into two disjoint sets. One of them is used in data consistency units in the network, and the other is used to define the loss. However, the performance of self-supervised learning degrades at high acceleration rates due to scarcity of acquired data. We propose a multi-mask self-supervised learning approach, which retrospectively splits available measurements into multiple 2-tuples of disjoint sets. Results on 3D knee and brain MRI shows that the proposed multi-mask self-supervised learning approach significantly improves upon single mask self-supervised learning at high acceleration rates.
Original language | English (US) |
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Title of host publication | 2021 IEEE 18th International Symposium on Biomedical Imaging, ISBI 2021 |
Publisher | IEEE Computer Society |
Pages | 1850-1854 |
Number of pages | 5 |
ISBN (Electronic) | 9781665412469 |
DOIs | |
State | Published - Apr 13 2021 |
Event | 18th IEEE International Symposium on Biomedical Imaging, ISBI 2021 - Nice, France Duration: Apr 13 2021 → Apr 16 2021 |
Publication series
Name | Proceedings - International Symposium on Biomedical Imaging |
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Volume | 2021-April |
ISSN (Print) | 1945-7928 |
ISSN (Electronic) | 1945-8452 |
Conference
Conference | 18th IEEE International Symposium on Biomedical Imaging, ISBI 2021 |
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Country/Territory | France |
City | Nice |
Period | 4/13/21 → 4/16/21 |
Bibliographical note
Funding Information:This work was partially supported by NIH R01HL153146, P41EB027061, U01EB025144; NSF CAREER CCF-1651825. There is no conflict of interest for the authors.
Publisher Copyright:
© 2021 IEEE.
Keywords
- Accelerated imaging
- Parallel imaging
- Physics-guided deep learning
- Self-supervised learning