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Abstract #4297

gpuNUFFT - An open source GPU library for 3D regridding with direct Matlab interface

Florian Knoll 1 , Andreas Schwarzl 2 , Clemens Diwoky 2 , and Daniel K Sodickson 1

1 Bernard & Irene Schwartz Center for Biomedical Imaging, Department of Radiology, NYU School of Medicine, New York, New York, United States, 2 Institute of Medical Engineering, Graz University of Technology, Graz, Styria, Austria

Image reconstruction for 3d non-Cartesian trajectories is still challenging due to expensive computation times. Parallel implementations using GPUs have evolved as a computationally effective way to tackle this problem. Current software packages are often restricted 2d imaging and are usually integrated in larger reconstruction frameworks. This makes re-use challenging especially when considering that the large majority of code for image reconstruction is written in Matlab. This work introduces gpuNUFFT, a new open-source 3d regridding GPU implementation with a built in Matlab interface that is straightforward to include in all implementations of iterative image reconstruction.

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