Richard L. Ehman, MD

Professor of Radiology
Mayo Clinic



Richard L. Ehman, M.D., is Professor of Radiology at the Mayo Clinic and Emeritus member of the Mayo Clinic Board of Trustees.

Dr. Ehman is known for his contributions in clinical practice, education, research, and leadership.   He was deeply involved in the early exploration of body, cardiovascular, and musculoskeletal imaging applications of MRI and he led the clinical Body MRI practice at the Mayo Clinic through years of rapid growth. His NIH-funded research program has focused on developing new imaging technologies.  He has authored or co-authored over 380 peer reviewed publications.  As an inventor, he holds more than 80 US and foreign patents.  His inventions, which include magnetic resonance elastography technology and methods for reducing MRI flow and motion artifacts are widely used in clinical radiology practice.

He has served as chair of the Radiology and Nuclear Medicine Study Section of the National Institutes of Health (NIH), as a member of the Advisory Council of the National Institute of Biomedical Imaging and Bioengineering of the NIH, and as a member of the Council of Councils of the NIH.  He was elected to the National Academy of Medicine in 2010.

Dr. Ehman has provided leadership in many professional organizations, including serving as president of the International Society for Magnetic Resonance in Medicine, the Academy of Radiology Research, the Society for Advanced Body Imaging, and the Radiological Society of North America.


William Shuman, MD

Professor of Radiology
University of Washington




Dr. Shuman received his undergraduate degree from Yale and medical degree from the State University of New York.  After completing a residency in Diagnostic Radiology at the University of Vermont in Burlington in 1979, Dr. Shuman went on to a two-year fellowship in Ultrasound and Computed Tomography at the University of Washington.  Dr. Shuman continued as faculty at UW, raising to the rank of Professor in the Departments of Radiology, Oncology, and Radiation Oncology in 1988.  While at the University of Washington, Dr. Shuman served as the Director of CT (1982 – 1990) and MR (1983 – 1990). Subsequently, he moved to become Director of Computed Tomography, Ultrasound, and MR at the University of Vermont (1992 – 1995) while continuing to hold Clinical Professorships at the University of Washington and Seattle University.  In 1995, Dr. Shuman became the Director of CT/MR/US at Evergreen Hospital Medical Center in Kirkland, WA and eventually Medical Director of Diagnostic Imaging. He also rose to CEO of Radia Medical Imaging, the largest private practice Radiology group in the western US.  However, in 2003 Dr. Shuman returned to the University of Washington to become Professor, Medical Director of Radiology at UW Medical Center, and Vice Chair of Radiology. He subsequently served as Interim Chairman of the Department of Radiology from 2016 – 2019, after which he was promoted to Professor Emeritus.


Outside the University of Washington, Dr. Shuman is the Past President of the Society of Computed Body Tomography/MR (SCBT/MR), now the Society for Advanced Body Imaging and has served on the Radiology Education Alliance of the ACR as well as numerous committees for multiple societies. His CV lists 155 peer reviewed publications. His research interests center on dual energy CT in body imaging, cardiac CT, and iterative/AI image reconstruction techniques.