Executive Committee

Dr. Matthew Cham is a Professor of Radiology, the Director of Cardiac MRI, and the Cardiothoracic Imaging Fellowship Director at The University of Washington Medical Center in Seattle.

Dr. Cham attended the University of Rochester School of Medicine through its Early Admission program, earning an MD degree with Distinction in Research. He completed his radiology residency at the University of Rochester where he received the Radiological Society of North America’s Resident Research Award for his work on pulmonary CT angiography and thromboembolic disease. He subsequently completed a Thoracic Radiology fellowship at Weill Cornell Medical Center in New York City and a Cardiac MRI fellowship at the Royal Brompton Hospital in London.

Before joining the University of Washington, Dr. Cham was the Director of Cardiac Radiology at the Weill Cornell and Icahn Mount Sinai Medical Centers in New York City where he helped to create one of the largest cardiovascular CT/MRI programs in the country. He has been awarded Radiology Teacher of the Year at Cornell, Mount Sinai, and the University of Washington.

Dr. Cham currently serves as the Chair of Cardiac Online Longitudinal Assessment in the American Board of Radiology and Chair of Enduring Materials in the American College of Radiology. He has authored over 80 peer-reviewed publications and textbook chapters in cardiothoracic imaging. He has delivered more than 200 invited lectures in North America, Europe, and Asia.

Dr. Elsie T. Nguyen is an Associate Professor of Radiology at University Medical Imaging Toronto, University of Toronto. She completed her thoracic imaging fellowship at the University of British Columbia and cardiovascular imaging fellowship at Stanford University. Dr. Nguyen is the Vice-Chair of on SIDE (Support, Inclusion, Diversity and Equity), and the Cardiothoracic Division Lead for Medical Imaging at the University of Toronto. She is also the President of the Canadian Society of Thoracic Radiology (CSTR).

She is passionate about education and has won several teaching awards at the undergraduate and post-graduate level and leads several research initiatives including creating a joint Breast and Cardiovascular Screening Program, optimization and utilization of coronary CT angiography among primary care physicians and MR imaging of non-ischemic cardiomyopathies.

Mentoring, sponsoring and coaching trainees and faculty to achieve their full potential is a passion and source of joy and meaning in her day to day work.

Dr. Stefan Loy Zimmerman is a Professor in the Johns Hopkins University School of Medicine in the Departments of Radiology and Medicine (Cardiology). He specializes in cardiothoracic imaging and is the Division Director of Diagnostic Imaging and Director of Cardiac Imaging. He is the program director for the Cardiothoracic Imaging Fellowship in Radiology. Dr. Zimmerman earned his medical degree from the University of Pennsylvania School of Medicine. He completed both a radiology residency and a cardiovascular imaging fellowship at the Hospital of the University of Pennsylvania. His research focuses on the use of CT and MR imaging in the diagnosis and management of cardiovascular diseases. He has particular interest in the use of cardiac imaging for management of arrhythmias, diagnosis and prognosis of arrhythmogenic right and left ventricular cardiomyopathy, and pulmonary hypertension.

Dr. Kate Hanneman is an Associate Professor and Vice Chair of Research at the University of Toronto and a cardiac radiologist at the Joint Department of Medical Imaging. She completed medical school and diagnostic radiology residency at the University of Toronto, a cardiovascular imaging fellowship at Stanford University, and a Masters in Public Health in Epidemiology at the Harvard TH Chan School of Public Health. She has published over 200 peer-reviewed articles and leads an active research program focused on environmental sustainability and improving health outcomes for patients using cardiac imaging. She holds multiple leadership roles, including Associate Editor with Radiology, Radiology: Cardiothoracic Imaging, the Journal of Cardiovascular Magnetic Resonance, and the Canadian Association of Radiologists Journal.

Dr. Fuss is a Professor of Radiology and Biomedical Imaging and Division chief for Cardiothoracic Imaging in the Department of Radiology and Biomedical Imaging at Yale School of Medicine in New Haven, CT. She attended medical school in Heidelberg, Germany and completed her residency in the Department of Diagnostic Radiology at the University of Heidelberg in 1997. She then left Germany to pursue her research interest in interventional radiology in the Department of Interventional Radiology at the University of Texas Health Science Center at San Antonio, TX. After starting a family, she decided to return to clinical practice. She completed a clinical fellowship and cardiothoracic fellowship in the Department of Diagnostic Radiology at Oregon Health & Science Center in Portland, OR and obtained board certification by the American Board of Radiology. Dr. Fuss joined the OHSU faculty in 2012, serving as section chief of cardiothoracic imaging since 2015, a position she held until June 2023. Dr. Fuss is a member of multiple national and international professional societies and serves on the executive board of the Society of Cardiovascular Computed Tomography. She is the associate editor for the Journal of Computed Tomography and Radiology: cardiothoracic Imaging, assistant editor for Radiology and serves as reviewer for multiple radiological journals. Her main interest is in familial aortopathies, complex valve disease and congenital heart disease as well as the special challenges and needs of women physicians and other underrepresented minorities in cardiothoracic imaging. 

Daniel Vargas, MD is associate professor and section chief of cardiothoracic imaging at the University of Colorado Anschutz Medical Campus where he also serves as the cardiothoracic imaging fellowship co-director.