Gradient non-linearity effects on upper cervical cord area measurement from MPRAGE brain MRI acquisitions

¹Department of Neurology, University of California San Francisco, San Francisco, CA, United States, ²Department of Neurology, Brigham and Women’s Hospital, United States, ³Department of Neurology, The Johns Hopkins University, United States, ⁴Department of Brain and Behavioral Science, Univeristy of Pavia, Italy, ⁵Yale University, School of Medicine, United States, ⁶Translational Neuroradiology Section, National Institute of Neurological Disorders and Stroke, United States, ⁷Department of Neurology, University of Toronto, Canada, ⁸Department of Neurology, University of Southern California, United States, ⁹Center for Neuroscience and Regenerative Medicine, Henry M. Jackson Foundation, United States, ¹⁰Advanced Imaging Research Center, Oregon Health & Science University, United States, ¹¹Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, United States, ¹²Department of Neurology, Cedars-Sinai Medical Center, United States, ¹³Department of Radiology, University of California San Francisco, United States