Coil Sensitivity Estimation with Deep Sets Towards End-to-End Accelerated MRI Reconstruction
Mahmoud Mostapha1, Boris Mailhe1, Simon Arberet1, Dominik Nickel2, and Mariappan S. Nadar 1
1Digital Technology and Innovation, Siemens Healthineers, Princeton, NJ, United States, 2Magnetic Resonance, Siemens Healthineers, Erlangen, Germany
Predictions from the proposed end-to-end system achieved a PSNR of 33.93 dB and SSIM of 0.840 like those obtained using precomputed CSMs. However, we observed more artifacts with precomputed CSMs. DS-CSME system required less time (~0.2s) to estimate CSMs than ESPIRiT (~1s).
DS-CSME:
a deep learning solution for coils sensitivity estimation, allowing end-to-end
learning framework for accelerated parallel magnetic resonance imaging
reconstruction.
An example comparing
the fully sampled target to predictions obtained using precomputed CSMs and those
obtained by the end-to-end system with DC-CSME. At ~5× acceleration,
predictions with precomputed CSMs show more artifacts.