Abstract
Current state-of-the-art reconstruction for quantitative tissue maps from fast, compressive, Magnetic Resonance Fingerprinting (MRF), use supervised deep learning, with the drawback of requiring high-fidelity ground truth tissue map training data which is limited. This paper proposes NonLinear Equivariant Imaging for MRF (NLEIMRF), a self-supervised learning approach to eliminate the need for ground truth for deep MRF image reconstruction. NLEI-MRF extends the recent Equivariant Imaging framework to the MRF nonlinear inverse problem. Only compressed-sampled MRF scans are used for training. NLEI-MRF learns tissue mapping using spatiotemporal priors: spatial priors are obtained from the invariance of MRF data to a group of geometric image transformations, while temporal priors are obtained from a nonlinear Bloch response model approximated by a pre-trained neural network. Tested retrospectively on two acquisition settings, we observe that NLEI-MRF closely approaches the performance of supervised learning.
Original language | English |
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Title of host publication | 2023 IEEE International Symposium on Biomedical Imaging, ISBI 2023 |
Place of Publication | U. S. A. |
Publisher | IEEE |
ISBN (Electronic) | 9781665473583 |
DOIs | |
Publication status | Published - 1 Sept 2023 |
Event | 20th IEEE International Symposium on Biomedical Imaging, ISBI 2023 - Cartagena, Colombia Duration: 18 Apr 2023 → 21 Apr 2023 |
Publication series
Name | Proceedings - International Symposium on Biomedical Imaging |
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Volume | 2023-April |
ISSN (Print) | 1945-7928 |
ISSN (Electronic) | 1945-8452 |
Conference
Conference | 20th IEEE International Symposium on Biomedical Imaging, ISBI 2023 |
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Country/Territory | Colombia |
City | Cartagena |
Period | 18/04/23 → 21/04/23 |
Bibliographical note
Funding Information:CMP and MIM are supported by the EU's Horizon 2020 (grant No. 952172). MG is supported by the EPSRC grant EP/X001091/1.
Funding
CMP and MIM are supported by the EU's Horizon 2020 (grant No. 952172). MG is supported by the EPSRC grant EP/X001091/1.
Keywords
- Compressed Sensing
- Equivariant Imaging
- Inverse Problems
- Magnetic Resonance Fingerprinting
- Quantitative MRI
- Self-Supervised Deep Learning
ASJC Scopus subject areas
- Biomedical Engineering
- Radiology Nuclear Medicine and imaging