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Ryan G. O'Hara

Ryan G. O'Hara, MD

Languages spoken: English

Academic Information

Departments Adjunct - Surgery


Academic Office Information

Board Certification

  • American Board of Radiology

Research Interests

  • Liver Cancer
  • Liver Circulation
  • Liver Disease
  • Liver Transplant
  • Targeted Drug Delivery Systems
  • Chemoembolization, Therapeutic
  • Embolization, Therapeutic
  • Image Guided Radiation Therapy (IGRT)
  • Neuroendocrine Tumors

Dr. O’Hara completed his medical training at the University of Washington in Seattle followed by training in diagnostic radiology at Sacred Heart Medical Center in Spokane, Washington. He then travelled to Philadelphia to pursue fellowship training in Vascular and Interventional Radiology at the University of Pennsylvania and obtained a certificate of added qualification in vascular and interventional radiology.

At the University of Pennsylvania, Dr. O’Hara was named the Cook-Cope scholar and obtained training in the clinical management and minimally invasive treatment of liver diseases as well as pulmonary and renal cancers. In addition, Dr. O'Hara obtained expertise in minimally invasive, endovascular solid organ embolization techniques, including the treatment of pulmonary arteriovenous malformations in patients with hereditary hemorrhagic telangiectasia.

Before coming to the University of Utah in 2010, Dr. O’Hara worked as an assistant professor and interventional oncologist at the Alpert Medical School of Brown University in Providence, Rhode Island where he developed a robust practice specializing in diseases of the liver and biliary tree as well vascular embolization and minimally invasive tumor treatments. Dr. O'Hara has helped develop the Integrated Theranostics Center (ITC) at the University of Utah and Huntsman Cancer Center with particular focus on the use of lutitium-based Peptide Receptor Radionuclide Therapy (PRRT) for the treatment of metastatic neuroendocrine tumors. In addition to interventional oncology, Dr. O'Hara has particular interest in complex endovascular treatments for peripheral artery disease and critical limb ischemia as well as benign prostate hyperplasia.

Education History

Fellowship University of Pennsylvania
Sacred Heart Medical Center
Professional Medical University of Washington
University of Montana

Selected Publications

Journal Article

  1. Wong TY, Zhang KS, Gandhi RT, Collins ZS, OHara R, Wang EA, Vaheesan K, Matsuoka L, Sze DY, Kennedy AS, Brown DB (2022). Long-term outcomes following 90Y Radioembolization of neuroendocrine liver metastases: evaluation of the radiation-emitting SIR-spheres in non-resectable liver tumor (RESiN) registry. BMC Cancer, 22(1), 224.


  1. O'Hara R (2017). Arm Support for Supine Patient. U.S. Patent No. 0296397. Washington, D.C.:U.S. Patent and Trademark Office.
  2. Tim Michaelis, Talmage Barth, Michael Price, Ryan O'Hara, Holden Brown, Niki Davis (2016). Arm Support for Supine Pateint. U.S. Patent No. 0296397. Washington, D.C.:U.S. Patent and Trademark Office.