Ronald Zagoria, MD


Dr. Ronald Zagoria is a radiologist and the chief of Abdominal Imaging at UCSF Medical Center. His clinical interests include uro-oncology, urolithiasis and infertility. He specializes in image-guided tumor ablation for kidney cancer. Zagoria has been recognized as one of the Best Doctors in America, America's Top Radiologist, America's Top Doctors for Cancer and Top Doctor for the International Association of Radiologists by Castle Connolly Medical Ltd. and U.S. News and World Report. He has given over 300 lectures and presentations and has written over 300 publications, including textbooks, book chapters, journal articles and abstracts.

Prior to joining UCSF, Zagoria served as the chief of Genitourinary Imaging and Intervention and executive vice chair for the Department of Radiology at Wake Forest University School of Medicine. Currently, he is a professor of radiology at UCSF.


Radiology at Parnassus
505 Parnassus Ave., Third Floor, Room M-327
San Francisco, CA 94143
Scheduling: (415) 353-2573
Main Phone: (415) 353-1968
Interventional Radiology: (415) 353-1300
Fax: (415) 353-7299

Hours: Monday to Friday 7:30 a.m. – 5:30 p.m.

More about Ronald Zagoria


University of Maryland School of Medicine 1983


Wake Forest University 1986


University of Massachusetts Medical Center 1987

Selected Research and Publications

  1. Lake ST, Greene KL, Westphalen AC, Behr SC, Zagoria R, Small EJ, Carroll PR, Hope TA. Optimal MRI sequences for 68Ga-PSMA-11 PET/MRI in evaluation of biochemically recurrent prostate cancer. EJNMMI Res. 2017 Sep 19; 7(1):77.
  2. Jha P, Bentley B, Behr S, Yee J, Zagoria R. Imaging of flank pain: readdressing state-of-the-art. Emerg Radiol. 2017 Feb; 24(1):81-86.
  3. Winklhofer S, Lambert JW, Wang ZJ, Sun Y, Gould RG, Zagoria RJ, Yeh BM. Reduction of peristalsis-related gastrointestinal streak artifacts with dual-energy CT: a patient and phantom study. Abdom Radiol (NY). 2016 Aug; 41(8):1456-65.
  4. Westphalen AC, Verma S, Zagoria RJ. Is it time for prostate MRI certification? Abdom Radiol (NY). 2016 May; 41(5):799-800.
  5. Starobinets O, Korn N, Iqbal S, Noworolski SM, Zagoria R, Kurhanewicz J, Westphalen AC. Practical aspects of prostate MRI: hardware and software considerations, protocols, and patient preparation. Abdom Radiol (NY). 2016 May; 41(5):817-30.
  6. Kohli M, Mayo-Smith W, Zagoria R, Sandrasegaran K. Image-guided intervention in the coagulopathic patient. Abdom Radiol (NY). 2016 Apr; 41(4):667-76.
  7. Westphalen AC, Noworolski SM, Harisinghani M, Jhaveri KS, Raman SS, Rosenkrantz AB, Wang ZJ, Zagoria RJ, Kurhanewicz J. High-Resolution 3-T Endorectal Prostate MRI: A Multireader Study of Radiologist Preference and Perceived Interpretive Quality of 2D and 3D T2-Weighted Fast Spin-Echo MR Images. AJR Am J Roentgenol. 2016 Jan; 206(1):86-91.
  8. Zagoria R. Emergency Radiology goes international. Emerg Radiol. 2015 Oct 20.
  9. Zagoria R. Emergency Radiology: what is different in children? Emerg Radiol. 2015 Sep; 22 Suppl 1:1.
  10. Childs DD, Clingan MJ, Zagoria RJ, Sirintrapun J, Tangtiang K, Anderson A, Leyendecker JR. In-phase signal intensity loss in solid renal masses on dual-echo gradient-echo MRI: association with malignancy and pathologic classification. AJR Am J Roentgenol. 2014 Oct; 203(4):W421-8.
  11. Allen BC, Chen MY, Childs DD, Zagoria RJ. Imaging-guided radiofrequency ablation of cystic renal neoplasms. AJR Am J Roentgenol. 2013 Jun; 200(6):1365-9.
  12. Davis IC, Heilbrun ME, Tangtiang K, Childs DD, Zagoria RJ. Computed tomography-guided renal tumor biopsies: tumor imaging features affecting sample adequacy. J Comput Assist Tomogr. 2013 Mar-Apr; 37(2):171-5.
  13. Gupta P, Allen BC, Chen MY, Childs DD, Kota G, Zagoria RJ. Renal function outcomes for multifocal renal neoplasms managed by radiofrequency ablation. Cardiovasc Intervent Radiol. 2013 Oct; 36(5):1329-35.
  14. Zagoria RJ, Childs DD. Update on thermal ablation of renal cell carcinoma: oncologic control, technique comparison, renal function preservation, and new modalities. Curr Urol Rep. 2012 Feb; 13(1):63-9.
  15. Heilbrun ME, Yu J, Smith KJ, Dechet CB, Zagoria RJ, Roberts MS. The cost-effectiveness of immediate treatment, percutaneous biopsy and active surveillance for the diagnosis of the small solid renal mass: evidence from a Markov model. J Urol. 2012 Jan; 187(1):39-43.
  16. Parks GE, Perkins LA, Zagoria RJ, Garvin AJ, Sirintrapun SJ, Geisinger KR. Benefits of a combined approach to sampling of renal neoplasms as demonstrated in a series of 351 cases. Am J Surg Pathol. 2011 Jun; 35(6):827-35.
  17. Zagoria RJ, Pettus JA, Rogers M, Werle DM, Childs D, Leyendecker JR. Long-term outcomes after percutaneous radiofrequency ablation for renal cell carcinoma. Urology. 2011 Jun; 77(6):1393-7.
  18. Georgiades CS, Rodriguez R, Littrup PJ, Frangakis CE, Leveille R, Ahrar K, Atwell TD, Cadeddu J, Trimmer C, Durack JC, Hammers HJ, Meng MV, Raman S, Solomon SB, Zagoria RJ, McLennan G, Laberge JM, Gervais DA, Kee ST. Development of a research agenda for percutaneous renal tumor ablation: proceedings from a multidisciplinary research consensus panel. J Vasc Interv Radiol. 2010 Dec; 21(12):1807-16.
  19. Pettus JA, Werle DM, Saunders W, Hemal A, Kader AK, Childs D, Zagoria RJ. Percutaneous radiofrequency ablation does not affect glomerular filtration rate. J Endourol. 2010 Oct; 24(10):1687-91.
  20. Uppot RN, Silverman SG, Zagoria RJ, Tuncali K, Childs DD, Gervais DA. Imaging-guided percutaneous ablation of renal cell carcinoma: a primer of how we do it. AJR Am J Roentgenol. 2009 Jun; 192(6):1558-70.

Publications are derived from MEDLINE/PubMed and provided by UCSF Profiles, a service of the Clinical & Translational Science Institute (CTSI) at UCSF. Researchers can make corrections and additions to their publications by logging on to UCSF Profiles.