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Cardiovascular Institute

Our Staff

Robert W. Biederman, MD, FACC, FAHA, FSGC, FASA

Associate Professor of Medicine
Director, Cardiovascular Magnetic Resonance Imaging
Drexel University, College of Medicine
Gerald McGinnis Cardiovascular Institute 

Dr. Robert Biederman, recognized worldwide for his expertise in cardiac MRI technology and research, is Director of Cardiovascular MRI at Allegheny General Hospital and Associate Professor of Medicine at the Drexel University College of Medicine. Dr. Biederman is board certified in internal medicine and cardiovascular disease and is an NIH/NHLBI certified cardiovascular MRI specialist.

Dr. Biederman received his medical degree from the Medical University of South Carolina. He completed his internship and residency at Penn-State University - Hershey Medical Center. Subsequently, he was a National Institute of Health/University of Alabama at Birmingham Cardiovascular MRI Research Fellow and Chief Cardiology Fellow at the University of Alabama at Birmingham. 

Dr. Biederman has received numerous awards and acknowledgments for his excellence and expertise in cardiovascular MRI. He is the recipient of a coveted National Scientist Development Grant from the American Heart Institute and has been, and currently is, funded by the NIH/NHLBI, as well as several investigator initiated industry proposals. His clinical and research interests cover a wide range of topics, including:

  • Valvular heart disease, especially aortic stenosis and mitral regurgitation
  • Mechanical myocardial performance using radio-frequency tissue-tagging
  • Non-traditional uses of cardiac MRI for assessment of diastolic function;
    intramyocardial perfusion; and chest pain in patients (particularly women)
    with normal or near normal coronary artery vessels
  • Clinical and cost-effectiveness of cardiac MRI compared to other imaging modalities

Dr. Biederman is an avid contributor to the medical literature, publishing in prestigious journals such as The Journal of Clinical Investigation, Circulation, and JACC. His work has been presented in over 100 scientific and professional manuscripts, abstracts, and textbook chapters. He is the author of a comprehensive cardiac MRI textbook entitled, Cardiovascular MRI Tutorial: Lectures and Learning, along with Mark Doyle, Ph. D. and June Yamrozik. Dr. Biederman lectures locally, nationally, and internationally on cardiovascular MRI and cardiac physiology. He is on the editorial board of the Journal of Cardiovascular Magnetic Resonance and serves as a reviewer for four additional journals in cardiology including Circulation and JACC. He is the Co-chair for the American Heart Association Peer-review Grant Study Section Group 1A.

Dr. Biederman holds many active memberships including:  Society of Cardiovascular Magnetic Resonance (Founding Member); Heart Valve Society of America (Founding Member); American College of Cardiology; American Society of Angiology; American Society of Chest Physicians; American Heart Association; and American Medical Association. He is a recognized Fellow in the American College of Cardiology and the American Society of Angiology.

Dr. Biederman has made major contributions to the field of cardiac MRI through his research, teaching, and prolific writing. His position further elevates the Cardiovascular Institute as a leading center for cardiovascular care.

Dr. Biederman relaxes on occasion by running, reading about early explorers or great survival stories, and traveling with his wife and three children.

Moneal Shah, MD

Dr. Shah received his medical degree from Northeastern Ohio Universities College of Medicine and completed his internal medicine residency at Ohio State University Medical Center. He completed a fellowship in general cardiology at Allegheny General Hospital and a one-year advanced cardiac imaging fellowship at St. Francis Hospital/Stony Brook University, where he trained with Dr. Nathaniel Reichek, a recognized authority on research in echocardiography and cardiac magnetic resonance imaging. Dr.Shah has Level III certification in cardiovascular MRI, cardiovascular CTA and echocardiography. He joined Allegheny General in 2011 as Assistant Professor of Medicine at Temple University School of Medicine and was named Associate Director of Cardiovascular MRI at the Gerald McGinnis Cardiovascular Institute.

Dr. Shah’s research interests are use of cardiac MRI for risk stratification in patients with arrhythmias, quantitative stress image analysis with cardiac MRI, cardiac physiology after gastric bypass surgery and multimodality cardiovascular imaging. He has published in peer-reviewed journals including Echocardiography and has presented his research at both regional and national meetings. Dr. Shah is a member of many professional organizations, including the American Heart Association (AHA), the American College of Cardiology (ACC), the Society for Cardiovascular Magnetic Resonance (SCMR), and the Society of Cardiovascular Computed Tomography (SCCT).

An avid runner, Dr. Shah trains daily and has completed 2 marathons. His interests also include the guitar and college football.

Mark Doyle, PhD

A native of Wales, Dr. Doyle completed his undergraduate work in Pure Physics at University College London where he graduated with honors. He completed graduate study with distinction at Nottingham University, Nottingham, England with a dissertation titled “Real-Time NMR Imaging.”  As a Postdoctoral Fellow there, he studied under Peter Mansfield, the 2003 Nobel Prize winner for his discoveries concerning magnetic resonance imaging.

Since 2002, he has been an Imaging Physicist in the Division of Cardiology at Allegheny General Hospital where he also holds the title Professor of Medicine, Drexel College of Medicine. Dr. Doyle’s work focuses on research in rapid MRI, seeking to make the scan time shorter, while providing excellent image quality. This research has led to the development of rapid flow imaging, where blood flow in the heart can be seen using a breath hold scan. Dr. Doyle also possesses a high level of programming proficiency with Matlab, C and Assembler for MRI image and data processing and control programs. Prior to coming to Allegheny General Hospital, he was with the University of Alabama at Birmingham as an Associate Professor of Medicine in the Division of Cardiovascular Disease.

Dr. Doyle has won numerous awards for his research and collaborates worldwide with scientists at other academic institutions and in the imaging industry. He has received federal funding for this research. Dr. Doyle is the author or co-author of over 100 scientific articles and conference papers and has presented his papers at both national and international venues. His work also appears as book chapters.

Dr. Doyle currently serves as a Primary Reviewer for both NIH Grant Applications and the British Heart Foundation. He also serves on the Editorial Board of the Journal of Cardiovascular Magnetic Resonance in Medicine and Current Cardiology Reviews. He was a founding member of the Society for Cardiovascular Magnetic Resonance and continues to actively participate in its programs.

Dr. Doyle has taught many students and postdoctoral fellows. He knows how to enthuse his students with his mastery of the subject matter and incredible enthusiasm.

Outside of work, Dr. Doyle’s interests include philosophical considerations of the nature and measurement of noise, gardening, and church organization.

June Yamrozik, BS, RT(R) (MR)

June Yamrozik has been a member of The Cardiac MRI Center community since 2000 and is the lead MRI technologist. She is certified as a Registered Technologist, Radiography and Magnetic Resonance Imaging. More than 20 years of MRI experience provide her the impetus for her interest in cardiac imaging research. She is the author or co-author of over 25 scientific articles and is a co-author of the book The Cardiovascular MRI Tutorial:  Lectures and Learning. She is admired as a teacher who can clearly explain the principles of MRI scanning to her fellow technologists. June is a member of the Society of Cardiovascular Magnetic Resonance.

Outside of work, June is an avid fiction reader, gourmet cook, and shopper!

Ronald B. Williams, BA, RT(R) (MR)

Ronald Williams joined the Cardiac MRI Center in 2003. He is certified in both Radiology and Magnetic Resonance through the American Registry of Radiologic Technologists. After many years as a Technologist in medical imaging, his enthusiasm for learning and growth led him to focus on Cardiac MRI.  As a result, he now actively participates in clinical research and has co-authored several papers and abstracts for scientific journals. Ron is a member of the Society of Cardiovascular Magnetic Resonance, American Society of Radiologic Technologists, and the Society of Magnetic Resonance Imaging.

Outside of work, Ron enjoys looking for great places to eat, photography, and mind stimulating activities!

Saundra Grant, RN, BSN

Saundra Grant is an experienced Advanced Registered Nurse who specializes in cardiovascular MRI and is currently Clinical Research Nurse Coordinator at the Cardiac MRI Center. In this role, she is responsible for the management, coordination and conduct of single and multi-center clinical trials using cardiac MRI. She serves as an excellent resource for faculty and staff on guidelines and regulations that govern our clinical research.

Saundra earned her BSN from Duquesne University in Pittsburgh. She has extensive experience in many areas of nursing with a special interest in cardiology and drug research. She is the co-author of several articles in professional journals and has lectured and taught a variety of courses for peers. She is a member of the A.A.C.N.

Outside of work, Saundra enjoys spending time with her family, community involvement, and outdoor sports.

Geetha Rayarao, MS

Geetha Rayarao is a software engineer specializing in processing and development of new ideas for magnetic resonance images. She has developed advanced software packages for visualizing and measuring blood flow through the heart and blood vessels.

Outside of work, Geetha enjoys reading English literature, touring the US, and map reading.

Diane Vido, MS

Diane Vido currently serves as Cardiovascular Statistician at The Cardiac MRI Center. She graduated from Bates College and earned her Master of Science degree from the University of Maryland. Diane’s work focuses on data analysis, data management, and report and manuscript writing. She is also involved in lecturing physicians and medical students.

Diane has co-authored over 50 scientific articles. Her primary interests include innovative analysis of cardiac MRI and transplant data and the creation of clinical databases. She is also involved in website development.  

Outside of work, Diane enjoys listening to classical music, reading about current events, and gourmet cooking.

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