David M. Yousem, MD, MBA


Dr. David M. Yousem is currently the Director of Neuroradiology, Professor of Radiology, and Vice-Chairman of Program Development for the Department of Radiology at the Johns Hopkins Medical Institution. Dr. Yousem received his B.S. and M.D. degrees at the University of Michigan. He completed a radiology residency at Johns Hopkins and a 2-year fellowship in neuroradiology at the University of Pennsylvania. He received his MBA degree at Johns Hopkins University in 2003.


Dr. Yousem’s expertise spans the full gamut of neuroradiology techniques including CT, MRI, angiography, myelography, sialography, plain films, CT guided aspirations and biopsies, functional MRI, diffusion and perfusion imaging, MR/CT angiography, and 3D reconstructions. He is a noted authority on disorders of the brain, spine, head and neck, olfaction, cranial neuropathies, and neurodegeneration. Dr. Yousem has authored/edited 3 books (“Neuroradiology: THE REQUISITES”, “Head and Neck Case Review”, and “Radiology Business Practice: How to Succeed” all published by Mosby/Elsevier) and has edited 3 other journal issues. He has published over 200 articles in peer-reviewed journals and over 50 chapters in books. He is a Past-President of the ASNR in 2008-9. He currently sits on many of its committees. He is also active in the American Society of Head and Neck Radiology, as well as the Association of Program Directors of Radiology. Dr. Yousem is on the Editorial Board of 2 journals.


Dr. Yousem has completed two marathons (best time 3 hours 54 minutes), a half Ironman, and a full Ironman (2.5 mile swim followed by 112 mile bike ride followed by 26 mile run) competition.



Mark D. Murphey MD, FACR


Dr. Mark D. Murphey is a professor of radiology at the Uniformed Services University of the Health Sciences in Bethesda, Maryland and Physician-in-Chief at the American Institute for Radiologic Pathology (AIRP). He received his MD from the University of Kansas Medical Center as well as his radiology residency training which was completed in 1986. After completing his Musculoskeletal mini-Fellowship studies at the University of California, San Diego and the Mallincrodt Institute of Radiology, he joined the faculty at the University of Kansas Medical Center in 1986 became Chief of Musculoskeletal Imaging in 1990.


Dr. Mark. D. Murphey has been an academic radiologist over 25 years and has directed all of his scholarly activities to his subspecialty of musculoskeletal imaging. In his early years at the University of Kansas, he published the first article on MR imaging of the sacroiliac joint. In 1993 Dr. Murphey moved to Armed Forces Institute of Pathology (AFIP), which provided a unique opportunity to understand the pathologic basis of a disease’s radiologic appearance. In 2010-2011, Dr. Murphey was instrumental in the transition from the AFIP to American Institute for Radiologic Pathology (AIRP) as a program of the American College of Radiology (ACR). Dr. Murphey is currently the Physician-in-Chief and Chief of Musculoskeletal Imaging at the AIRP. In his tenure at the AFIP and the AIRP he has particularly emphasized research on the imaging appearance of musculoskeletal tumors.


Dr. Murphey has published 144 peer reviewed articles, 16 syllabi, 147 abstracts, 26 books and book chapters, 72 scientific exhibits and giving 515 national and international presentations. He was the recipient of the Prestigious Presidents Medal of the International Skeletal Society in 1998 and became a fellow of the American College of Radiology in 2012. Dr. Murphey is on the editorial boards of Skeletal Radiology and RadioGraphics and assistant editor of the Musculoskeletal section of American Journal of Roentgenology and a reviewer for 4 journals.


Dr. Murphey’s academic career has been extraordinarily fulfilling, and he hopes that his efforts and have broadened our knowledge and understanding of the imaging of musculoskeletal disease and its pathologic basis



Harold I. Litt, MD, PhD


Harold I. Litt, MD,PhD, is Associate Professor of Radiology and Medicine and Chief of the Cardiovascular Imaging Section in the Department of Radiology of the Perelman School of Medicine of the University of Pennsylvania School of Medicine in Philadelphia, Pennsylvania. He is also director of the Center for Advanced CT Imaging Sciences, the computed tomography core lab facility at Penn. After undergraduate and graduate training in physics at Harvard University, he received an MD and PhD in biophysics from the State University at Buffalo, followed by training in diagnostic radiology at Penn and cardiothoracic radiology at the University of California San Francisco. His clinical and research interests include development and application of novel cardiac CT and MR methods.


He was principal investigator of a large multicenter trial of coronary CT vs. usual care in patients presenting to emergency departments with acute chest pain, published in the New England Journal of Medicine in 2013. His other research interests include mathematical modeling of cardiac motion using nonlinear registration techniques, application of cardiac MRI to evaluate the effects of stem cell therapy for myocardial infarction, and MR imaging of patients with ventricular arrhythmias and with implanted devices. He is currently the principal investigator of a multicenter trial funded by the Department of Health of the Commonwealth of Pennsylvania of methods for CT radiation dose reduction. Dr. Litt was elected a fellow of the American Heart Association and North American Society of Cardiovascular Imaging and has represented the American College of Radiology, AHA and NASCI on multisociety guideline writing committees concerning cardiac and vascular imaging. He has served on the leadership committee of the AHA Cardiovascular Radiology and Interventions Council, and as chair of its Early Career Committee, he organized the inaugural CVRI Council Early Career programming at the AHA Annual Scientific Sessions. He is the organizer of the first cardiac MRI course to be given in Africa, co-sponsored by the Radiological Society of South Africa and the Society of Cardiovascular Magnetic Resonance, held in Stellenbosch, South Africa in August 2015.



John R. Leyendecker, MD


Dr. John R. Leyendecker completed his Medical School at the University of Pennsylvania in Philadelphia and diagnostic radiology residency at Emory University in Atlanta. His first fellowship was in vascular and interventional radiology at Wilford Hall Medical Center in San Antonio in 1993-1994, and his second fellowship was in body MRI at the Mallinckrodt Institute of Radiology in St. Louis in 2001-2002.


He has held faculty positions in the Abdominal Imaging sections of the University of Texas Health Sciences Center in San Antonio and Wake Forest University School of Medicine in Winston-Salem. In 2015, he joined the Radiology Department at UT Southwestern where he currently serves as Vice-Chair of Clinical Operations and as a member of the Abdominal Imaging Section.


Dr. Leyendecker has served on numerous committees of the RSNA, SAR, ACR, ABR, and ARRS related to MRI and Genitourinary and Gastrointestinal Imaging. He has co-authored two textbooks on the topics of abdominal imaging and MRI and is currently the Igor Laufer Visiting Professor for the Society of Abdominal Radiology. In addition, Dr. Leyendecker is currently one of the most sought-after internationally known radiology speakers in the field of abdominal and MR imaging.




Ricardo Restrepo, MD


Dr. Ricardo Restrepo is a staff pediatric Radiologist at Miami Children’s Hospital. He completed his radiology residency at Mount Sinai Medical Center of Greater Miami and two fellowships in pediatric and pediatric interventional radiology at The Hospital for Sick Children in Toronto.


Dr. Restrepo is currently the chief section of Body MRI and Interventional Radiology at Miami Children’s Hospital. Until recently Dr. Restrepo had been the Pediatric Radiology fellowship program director for 10 years.


As a passionate teacher, he has been invited as a speaker to numerous local, national and international radiology society meetings and educational seminars. He also has multiple publications in medical journals (including ACR Appropriateness Criteria in MSK imaging), has written several chapters in major pediatric radiology text books and has been the recipient of several prestigious awards for scientific presentations at the Society of Pediatric Radiology meeting and Radiological Society of North America. He is also a reviewer for Pediatric Radiology Journal and a volunteer with the American Board of Radiology.


Besides pediatric radiology, Dr. Restrepo truly enjoys traveling, food and wine.



Edward Y. Lee, MD, MPH

Boston Children’s Hospital and Harvard Medical School


Dr. Edward Y. Lee is an associate professor of radiology at Boston Children’s Hospital and Harvard Medical School. He received his A.B. and M.D. from the University of Chicago (Phi Beta Kappa and Swift Scholar) and his M.P.H. from Harvard University (Student Marshal), followed by an internship at Harvard Medical Center and radiology residency at Mallincrodt Institute of Radiology / Washington University Medical Center. After completing a pediatric radiology fellowship as a chief fellow at Boston Children’s Hospital and Harvard Medical School in 2005, he joined the Departments of Radiology and Medicine, Division of Pulmonary Medicine. Since Dr. Lee was appointed as the Chief of Thoracic Imaging Division in 2010 and Director of MRI from 2012 - 2014, he has provided integrated image performance and interpretation across modalities for congenital and acquired pediatric disorders at Boston Children’s Hospital.


Dr. Lee has more than 180 peer-reviewed journal articles, 100 review articles or book chapters, and three books related to pediatric imaging.  He was the recipient of RSNA Eyler Editorial Fellowship in 2010. He is the winner of the prestigious Caffey’s Awards from SPR in both Best Clinical Scientific Research and Best Educational Exhibit Presentation categories. Additionally, as an assistant editor of the pediatric section of the American Journal of Roentgenology (AJR) and European Journal of Radiology (EJR); editorial board member of nine journals; and reviewer of 25 journals; Dr. Lee has also helped guide and establish the educational and scientific direction and growth in his academic specialty – pediatric imaging – at academic and medical institutions around the world. Dr. Lee is the past President of the New England Roentgen Society (NERRS) and current President of the International Society of Pediatric Thoracic Imaging (ISPTI).


Dr. Lee is currently one of the most sought-after internationally known radiology speakers in the field of pediatric imaging. He has served either as a visiting professor or as an invited speaker on various topics related to pediatric imaging education more than 30 different countries in the Americas, Europe, Middle East, Asia, and Africa.




Xiaoyuan Feng, MD, PhD


Professor Dr. Feng Xiaoyuan graduated from Shanghai First Medical College in 1982. Since then he has been working in the Department of Radiology of university-affiliated Huashan Hospital. In 1989, Prof. Feng got his MD in Shanghai Medical University, and he was promoted to be full professor in 1996.From 1988 to 1997, he worked as visiting scholar or senior visiting scholar in UCSF Medical Center in the USA, Faculty of Medicine Lund University in Sweden, and Medical School of Université libre de Bruxelles in Belgium, for periods of time.


Prof. Feng served as the Dean of Shanghai Medical College Fudan University from 2006 to 2011, responsible for the development of the education, research, practice and service in the medical field. Prior to that position, he was the vice President and then the co-President of Huashan Hospital, affiliated to Fudan University. In March 2011, Prof. Feng was appointed as the Vice President of Fudan University, responsible for international cooperation, alumni affairs and fund raising.


Prof. Feng is a well-recognized radiologist, serving as the editor-in-chief or associate editor-in-chief of several academic journals in radiology and medical image. He is also the elect Chairman of the Chinese Society of Radiology, the largest and most authentic academic association in medical radiology.



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