Dr. Xiawei Ou, PhD is the MR Physicist at Arkansas Children’s Hospital (ACH) and the Director of Brain Imaging Laboratory at Arkansas Children’s Nutrition Center. He is also an Associate Professor of Radiology and Pediatrics at the University of Arkansas for Medical Sciences (UAMS). He joined the staff of UAMS/ACH in 2008. He received his doctoral degree in MRI Physics from Vanderbilt University in Nashville, Tennessee, followed by a research fellowship at the Vanderbilt University Institute of Imaging at Vanderbilt University Medical Center. Dr. Ou’s clinical interests are in advanced pediatric neuroimaging. His research interests include 1) new quantitative MRI methods and 2) effects of nutrition/obesity on brain development in children.