Application

An Open source library for accelerated iterative magnetic resonance image reconstruction.

Contributors

Alex Cerjanic1,2, Joseph L Holtrop1,2, Giang Chau Ngo1, Brent Leback3, Galen Arnold4, Mark Van Moer4, Genevieve LaBelle2,5, Jeffrey A Fessler6, and Bradley P Sutton1,2

Estimated cost

Free

Progress

Stable release, (NCSA license)

PowerGrid is an accelerated, open source, freely available toolkit for iterative reconstruction supporting non-Cartesian trajectories. Using high level compiler directives, GPU accelerated Fourier transform operators were implemented in a high level syntax designed to correlate with the popular Image Reconstruction Toolbox (IRT). A speed-up of up to 8.96x over the unaccelerated IRT reconstruction was obtained using an NVIDIA Tesla K40c accelerator.

Publications

Affiliations

1Bioengineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States,
2Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, IL, United States,
3PGI Compilers & tools; an NVIDIA brand, Portland, OR, United States,
4National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL, United States,
5Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, United States,
6Electrical Engineering and Computer Science, University of Michigan, Ann Arbor, MI, United States

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