Compressed Sensing Reconstruction With Motion Estimation/Compensation
Compressed sensing methods with motion estimation and compensation techniques have been proposed for the reconstruction of accelerated dynamic MRI. However, artifacts that naturally arise in compressed sensing reconstruction procedures hinder the estimation of motion from reconstructed images, especially at high acceleration factors. In our work, we introduce a robust groupwise nonrigid motion estimation technique applied to the compressed sensing reconstruction of dynamic cardiac cine MRI sequences. This package implements the GW-CS reconstruction method described in  with the posterior improvements of the Jacobian Weighted temporal Total Variation (JW-tTV) introduced in .
 Royuela-del-Val, J., Cordero-Grande, L., Simmross-Wattenberg, F., Martín-Fernández, M. and Alberola-López, C. (2016), Nonrigid groupwise registration for motion estimation and compensation in compressed sensing reconstruction of breath-hold cardiac cine MRI. Magn Reson Med, 75: 1525–1536. doi: 10.1002/mrm.25733
 Royuela-del-Val, J., Cordero-Grande, L., Simmross-Wattenberg, F., Martín-Fernández, M. and Alberola-López, C. (2016), Jacobian weighted temporal total variation for motion compensated compressed sensing reconstruction of dynamic MRI. Magn Reson Med. doi: 10.1002/mrm.26198