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Abstract #2850

A STATISTICAL FRAMEWORK FOR EVALUATING THE RELIABILITY OF MYELIN IMAGING

Agah Karakuzu1,2, Cyril Pernet3, Tanguy Duval1, Julien Cohen-Adad1,4, and Nikola Stikov1,2

1Polytechnique Montreal, Montreal, QC, Canada, 2Montréal Heart Institute, Montréal, QC, Canada, 3Brain Research Center, Division of Clinical Neurosciences, University of Edinburgh, Edinburgh, Scotland, 4Functional Neuroimaging Unit, CRIUGM, Universite De Montreal, Montreal, QC, Canada

Given the importance of myelin in brain structure and function, the advancement of MR-based myelin imaging techniques has drawn a great deal of attention. In this abstract we propose a statistical framework for analyzing myelin imaging, taking us one step closer to standardizing and industrializing MR-based myelin biomarkers. In a nutshell, we are computing Pearson correlation coefficients for scan-rescan reliability and taking their differences to determine if some myelin techniques are more reliable than others. We tested this framework in ex vivo dog spinal cord and found the differences between myelin metrics to be subtle, indicating that one metric can often serve as a surrogate for another.

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