This study presents our harmonization efforts on the multi-site diffusion MRI data from ~11,000 adolescents in the Adolescent Brain Cognitive Development (ABCD) study, collected at 21 sites using Siemens, GE, and Philips scanners. We validated the harmonization of the multi-site dMRI data using several standard and advanced diffusion MRI measures including Fractional Anisotropy (FA), Return-To-Origin Probability (RTOP), Return To the Axis Probability (RTAP), Return To the Plane Probability (RTPP), Mean Squared Displacement (MSD).
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