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Abstract #3581

Learned Off-Resonance Correction for Simultaneous Radial 23Na and 1H Acquisitions at 7T

Kirsten Koolstra1, Olga Dergachyova2, Zidan Yu2,3, Andrew Webb1, and Martijn Cloos2,3
1C.J. Gorter Center for High Field MRI, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands, 2Center for Advanced Imaging Innovation and Research, Department of Radiology, New York University School of Medicine, New York, NY, United States, 3Sackler Institute of Graduate Biomedical Sciences, NYU Langone Health, New York, NY, United States

Simultaneous proton (1H) and sodium (23Na) acquisition can provide important metabolic information. However, proton data may suffer from off-resonance artifacts due to the long dwell time required to obtain sufficient SNR for 23Na. In this work we use center outward and center inward image pairs to train a convolutional neural network that performs an off-resonance correction for the proton data without an additional measured field map.

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