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Robert J. Siegel, MD

Director, Cardiac Non-Invasive Laboratory

Medical Director, Clinic for Hypertrophic Cardiomyopathy and Aortopathies

Professor, Medicine

S. Rexford Kennamer MD Chair in Cardiac Ultrasound

Robert J. Siegel, MD

Director, Cardiac Non-Invasive Laboratory

Medical Director, Clinic for Hypertrophic Cardiomyopathy and Aortopathies

Professor, Medicine

S. Rexford Kennamer MD Chair in Cardiac Ultrasound

  • IM/Cardiology

Aortic Aneurysms

Aortic Regurgitation

Aortic Stenosis

Bicuspid Aortic Valve Disease



Heart Disease

Heart Murmurs

Heart Valve Diseases

Heart Valve Surgery / Surgeries

Marfan's Syndrome

Internationally recognized as one of the leading experts in the field of cardiovascular ultrasound, Siegel specializes in cardiovascular ultrasound, including transthoracic, transesophageal and intravascular methodologies. Siegel's research interests include valvular heart disease, therapeutic applications of ultrasound energy, 2D and 3D transesophageal echocardiography for the guidance and monitoring of percutaneous procedures such as mitral valve repair and aortic valve replacement, and intraoperative echocardiography. In addition, he is involved with clinical research studies related to the diagnosis, assessment and management of patients with Marfan syndrome and other aortopathies as well as hypertrophic cardiomyopathy and pericardial and valvular heart disease.Siegel is on the editorial board of two cardiovascular journals. He has edited three textbooks on ultrasound-related topics, and he is a reviewer for more than a dozen cardiovascular journals. He has authored over 285 peer-reviewed scientific papers related to cardiovascular medicine. He is also a contributing author to more than 20 cardiovascular textbooks.Siegel is a fellow in the American College of Cardiology, and has previously served as the president of the California Chapter. He is also a Co-chair of the American College of Cardiology 2014 annual meeting, Co-chair of the National Marfan Foundation 2013 annual meeting and a previous president of the Los Angeles Society of Echocardiography. He has been active in numerous cardiovascular societies, including the American Heart Association, the American College of Cardiology and the American Society of Echocardiography.

  • Medical School: Baylor College of Medicine, Texas, 1974
  • Residency: Grady Memorial Hospital, 1974- 1976
  • Residency: LA County USC, 1977- 1978
  • Fellowship: Harbor- UCLA, 1978-1980

View CV as a PDF

  • Siegel RJ, Biner S, Rafique AM, Rinaldi M, Lim S, Fail P, Hermiller J, Smalling R, Whitlow PL, Hermann HC, Foster E, Feldman T, Glower D, Kar S. The acute hemodynamic effects of MitraClip therapy. J Am Coll Cardiol 57:1658-65, 2011
  • Beigel R, Cercek B, Luo H, Siegel RJ. Noninvasive Evaluation of Right Atrial Pressure. J Am Soc Echocardiogr 26:1033-42, 2013
  • Wunderlich N, Beigel, Siegel RJ. Management of Mitral Stenosis Using 2D and 3D Echo-Doppler Imaging. JACC: Cardiovacular Imaging 6:1191-1205, 2013
  • Beigel R, Wunderlick N, Ho SY, Arsanjani R, Siegel RJ. The Left Atrial Appendage: Anatomy, Functon, and Non-invasive Evaluation. JACC: Cardiovascular Imaging 7:1251-65, 2014
  • Grayburn PA, Carabello B, Hung JW, Gillam LD, Liang D, Mack MJ, McCarthy PM, Miller DC, Trento A, Siegel RJ. Defining “Severe” Secondary Mitral Regurgitation: Emphasizing an Integrated Approach. J Am Coll Cardiol 64:2792-2801, 2014
  • Beigel R, Wunderlich N, Kar S, Siegel RJ. The Evolution of Percutaneous Mitra Valve Repair Therapy: Lessons Learned and Implications for Patient Selection. J AM Coll Cardiol 64:2688-2700, 2014

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