Example Matlab codes and data for 3D-EPTI reconstruction using low-rank subspace method.
Related works:
- "3D Echo Planar Time-resolved Imaging (3D-EPTI) for ultrafast multi-parametric quantitative MRI",Fuyixue Wang and Zijing Dong et al., bioRxiv 2021.
- "Echo planar time-resolved imaging (EPTI)", Fuyixue Wang et al., MRM, 2019.
- "EPTI with Subspace Reconstruction and Optimized Spatiotemporal Encoding", Zijing Dong et al., MRM, 2020.
- "T2 shuffling: Sharp, multicontrast, volumetric fast spin-echo imaging", Jonathan Tamir et al., MRM, 2017.
The example raw k-space data used for testing (script_3DEPTI_subspaceRecon_example_CPU.m) can be download at: https://doi.org/10.6084/m9.figshare.14558154
The data for basis generation is in 'acq_params.mat'. 'Generated_bases.mat' is the generated bases.
This example presents a CPU implementation of the reconstruction based on BART toolbox: https://mrirecon.github.io/bart (BART toolbox needs to be installed for this reconstruction instance)
Another example Matlab implementation without using BART can be found at https://github.com/zijingd/VFA-EPTI
Further acceleration can be achieved by GPU.
Please contact us if you have any questions about our work. Fuyixue Wang fwang18@mgh.harvard.edu, Zijing Dong zijingd@mit.edu Feb/2021