1Radiology, Washington University School of Medicine, St. Louis, MO, United States, 2Obstertic and Gynecology, Washington University School of Medicine, St. Louis, MO, United States, 3The Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, United States, 4Biomedical Engineering, Washington University in St. Louis, St. Louis, MO, United States