1 Department of Biomedical Engineering, Michigan Technological University, Houghton, Michigan.
2 Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia.
3 Department of Radiology, Nationwide Children's Hospital, The Ohio State University College of Medicine, Columbus, Ohio.
4 Department of Pediatrics, Texas Children's Hospital/Baylor College of Medicine, Houston, Texas.
5 Department of Surgery and Perioperative Care, Texas Center for Pediatric and Congenital Heart Disease, University of Texas Dell Medical School/Dell Children's Medical Center, Austin, Texas. Electronic address: cmery@austin.utexas.edu.