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Abstract #2418

Validation of a Convex Relaxation Approach for Field Map Estimation

Abraam S. Soliman1, 2, Jing Yuan2, Terry M. Peters1, 2, Charles A. McKenzie1, 3

1Biomedical Engineering, University of Western Ontario, London, Ontario, Canada; 2Imaging Research Laboratories, Robarts Research Institute, London, Ontario, Canada; 3Medical Biophysics, University of Western Ontario, London, Ontario, Canada

MRI provides a unique ability to distinguish fat and water signals based on their unique chemical shifts. A successful separation largely relies on the correct estimation of B0 magnetic field inhomogeneities. In this work, we validate a previously proposed approach for field map estimation using datasets provided by the ISMRM challenge for water-fat reconstruction. All the datasets acquired with equally-spaced echo-times were processed by our technique. The average online scoring was 98.78 %, demonstrating that our method can be reliably applied on a wide variety of anatomies in clinical practice.

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