Li Feng

This package demo demonstrates the reconstruction methods "RACER-GRASP" and "GROG-GRASP" as described in the following two papers:


1. "RACER-GRASP: Respiratory-weighted, aortic contrast enhancement-guided and coil-unstreaking golden-angle radial sparse MRI"

Feng L, Huang C, Shanbhogue K, Sodickson DK, Chandarana H, Otazo R.

Magn Reson Med. 2017 Nov 28. doi: 10.1002/mrm.27002. [Epub ahead of print]



2. "Optimization and validation of accelerated golden-angle radial sparse MRI reconstruction with self-calibrating GRAPPA operator gridding"

Benkert T, Tian Y, Huang C, DiBella EVR, Chandarana H, Feng L.

Magn Reson Med. 2017 Nov 28. doi: 10.1002/mrm.27030. [Epub ahead of print]



This package is released for academic use only!

If any component in this package is helpful for your research, please cite our papers


For any further help or information, please contact

Li Feng, PhD


New York University, School of Medicine


The source code uses the following external packages:

- NUFFT toolkit by Jeffrey Fessler


- Non-linear conjugate gradient algorithm by Miki Lustig


- Coil clustering code by Tao Zhang


GROG code by Ye Tian



PLEASE NOTE: The software available on this page is provided free of charge and comes without any warranty. CAI²R and the NYU School of Medicine do not take any liability for problems or damage of any kind resulting from the use of the files provided. Operation of the software is solely at the user's own risk. The software developments provided are not medical products and must not be used for making diagnostic decisions.

The software is provided for non-commercial, academic use only. Usage or distribution of the software for commercial purpose is prohibited. All rights belong to the author (Li Feng) and the NYU School of Medicine. If you use the software for academic work, please give credit to the author in publications and cite the related publications.

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Philanthropic Support

We gratefully acknowledge generous support for radiology research at NYU Langone Medical Center from:
• The Big George Foundation
• Raymond and Beverly Sackler
• Bernard and Irene Schwartz

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