About Ralph Weissleder, MD, PhD

Dr. Weissleder is the Thrall Professor of Radiology and Professor of Systems Biology at Harvard Medical School, and Attending Clinician in Interventional Radiology at MGH. Dr. Weissleder is also a member of the Harvard Cancer Center and the Department of Systems Biology at HMS. He is a member of the National Academy of Medicine, the American Academy of Arts and Sciences, the National Academy of Inventors and the German Academy of Sciences (Leopoldina). Dr. Weissleder is currently the principal investigator of several National Institute of Health grants and consortia. He has published over 1,000 publications (h-index >185) in peer reviewed journals and has authored several textbooks. He is one of the top 100 ranking scientists in the world according a world ranking list. His work has been honored with numerous awards including the J. Taylor International Prize in Medicine, the Millenium Pharmaceuticals Innovator Award, the AUR Memorial Award, the ARRS President’s Award, The Society for Molecular Imaging Lifetime Achievement Award, the Academy of Molecular Imaging 2006 Distinguished Basic Scientist Award, the 2008 RSNA Outstanding Researcher Award and gold medalist of the ESR. In 2014 Dr. Weissleder was named by Thomson Reuters as one of the “The World’s Most Influential Scientific Minds”.


Clinical Interests:




Mass General Imaging: Interventional Radiology
55 Fruit St.
Boston, MA 02114
Phone: 617-643-4723

Medical Education

  • PhD, University of Heidelberg Medical School
  • Residency, Massachusetts General Hospital

American Board Certifications

  • Diagnostic Radiology, American Board of Radiology

Accepted Insurance Plans

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Dr Weissleder is a physician scientist with extensive clinical expertise. His research group develops novel molecular technologies for noninvasive imaging of cellular function, and uses these technologies to study basic human biology and create next generation diagnostics and therapeutics. His primary interests are in cancer and in inflammation. His work on imaging, nanomaterials and miniaturized sensing technologies has led to a number of new technologies and advanced clinical trials.


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