William P. Dillon, MD

William P. Dillon, MD

Professor, Departments of Radiology, Neurology, and Neurological Surgery, UCSF
Elizabeth A. Guillaumin Endowed Chair, UCSF

Phone: (415) 353-1668 (appts)
Box 0628, UCSF
San Francisco, CA 94143-0628

View on UCSF Profiles

Cancer Center Membership

Associate Member » Neurologic Oncology

Research Summary

William P. Dillon, MD, is the Elizabeth A. Guillaumin Professor of Radiology in the Section of Neuroradiology and Executive Vice Chair of Radiology and Biomedical Imaging at the University of California, San Francisco. Dr. Dillon received his medical degree from the University of California, Los Angeles and completed his residency in Radiology at the University of Utah, followed by a fellowship in Neuroradiology at the University of California, San Francisco in 1982. He was appointed Chief of the Section of Neuroradiology at UCSF in 1992.

Dr. Dillon is past president of the American Society of Head and Neck Radiology (ASHNR) and the American Society of Neuroradiology. Dr. Dillon received the Gold Medal from the ASHNR in 2008 and the Gold Medal from the American Society of Neuroradiology in 2015. Dr. Dillon was a Senior Editor for the American Journal of Neuroradiology from 1998 to 2011, and has been a co-investigator in 25 funded projects and 10 clinical trials. He has published 230 articles, 23 book chapters, and 3 books.

Dr. Dillon received the Francis A. Sooy, MD teaching award for Clinical Excellence from the Department of Otolaryngology, UCSF in 1993, and the J. Elliott Royer award for contributions to clinical neurology in 2011.He was also the recipient of the Outstanding Researcher Award from the American Society of Neuroradiology in 2014. He has been elected as one of the Best Doctors of America every year since 1995.

His interests are varied and include imaging of the head and neck, spinal pain management, imaging of stroke, vascular diseases of the brain, and imaging of brain tumors.


Neuroradiology, Adult


Head and Neck Neuroradiology, Spine Radiology

Professional Interests:

MRI and CT imaging of stroke, imaging of brain tumors, head and neck imaging, imaging and pain management of spine disorders

Education and Training:

• Medical School: University of California, Los Angeles - Medical Degree

• Internship: Virginia Mason Hospital, Seattle - Internal Medicine

• Residency: University of Utah, Salt Lake City - Diagnostic Radiology

• Fellowship: University of Utah, Salt Lake City - Neuroradiology, Six Months (1982)

• Fellowship: University of California, San Francisco - Neuroradiology, Six Months (1982–1983)

• Medical License Utah (1979-1982, inactive)

• Medical License California (1982-Present)

• American Board of Radiology (1982-Present)

• Medical License Ohio (1996-2001, inactive)

• Medical License Arizona (1998-2001, inactive)

• Medical License New York State (2000-2002, inactive)

• American Board of Radiology (1982-Present)


University of Santa Clara, CA, B.S., 1970-74, Biology
University of CA at Los Angeles, CA, M.D., 1974-78, Medicine
Virginia Mason Hospital, Seattle, WA, Intern, 1978-79, Internal Medicine
University of Utah, Salt Lake City, UT, Resident, 1979-82, Diagnostic Radiology
University of California, San Francisco, Fellow, 1/82-6/82, Neuroradiology

Professional Experience

  • 1982-1983
    University of California, San Francisco-- Clinical Instructor in Neuroradiology
  • 1983-1987
    San Francisco Veterans Administration Medical Center -- Chief, Neuroradiology Service
  • 1983-1987
    University of California, San Francisco -- Assistant Professor of Radiology in Residence
  • 1987-1993
    University of California, San Francisco -- Associate Professor of Radiology, Neurology and Neurological Surgery in Residence
  • 1993-present
    University of California, San Francisco -- Professor of Radiology, Neurology and Neurological Surgery
  • 1992 -- present
    Chief, Neuroradiology Section, Vice Chairman, UCSF Department of Radiology

Honors & Awards

  • 1992
    Francis A. Sooy, M.D. Award for clinical excellence, Otolaryngology
  • 1993-1994
    President, American Society of Head and Neck Radiology
  • 1998-present
    Senior Editor, American Journal of Neuroradiology

Selected Publications

  1. Brown JD, Saeed M, Do L, Braz J, Basbaum AI, Iadarola MJ, Wilson DM, Dillon WP. CT-guided injection of a TRPV1 agonist around dorsal root ganglia decreases pain transmission in swine. Sci Transl Med. 2015 Sep 16; 7(305):305ra145.
    View on PubMed
  2. Mamlouk MD, Saket RR, Hess CP, Dillon WP. Adding Value in Radiology: Establishing a Designated Quality Control Radiologist in Daily Workflow. J Am Coll Radiol. 2015 Aug; 12(8):838-41.
    View on PubMed
  3. Barajas RF, Pampaloni MH, Clarke JL, Seo Y, Savic D, Hawkins RA, Behr SC, Chang SM, Berger M, Dillon WP, Cha S. Assessing Biological Response to Bevacizumab Using 18F-Fluoromisonidazole PET/MR Imaging in a Patient with Recurrent Anaplastic Astrocytoma. Case Rep Radiol. 2015; 2015:731361.
    View on PubMed
  4. Dillon WP. Ronald L. Arenson, MD, president, radiological society of north america, 2015. Radiology. 2015 Jan; 274(1):12-3.
    View on PubMed
  5. González RG, Furie KL, Goldmacher GV, Smith WS, Kamalian S, Payabvash S, Harris GJ, Halpern EF, Koroshetz WJ, Camargo EC, Dillon WP, Lev MH. Good outcome rate of 35% in IV-tPA-treated patients with computed tomography angiography confirmed severe anterior circulation occlusive stroke. Stroke. 2013 Nov; 44(11):3109-13.
    View on PubMed
  6. Schellinger PD, Köhrmann M, Liu S, Dillon WP, Nogueira RG, Shuaib A, Liebeskind DS. Favorable vascular profile is an independent predictor of outcome: a post hoc analysis of the safety and efficacy of NeuroFlo Technology in Ischemic Stroke trial. Stroke. 2013 Jun; 44(6):1606-8.
    View on PubMed
  7. Karampinos DC, Melkus G, Shepherd TM, Banerjee S, Saritas EU, Shankaranarayanan A, Hess CP, Link TM, Dillon WP, Majumdar S. Diffusion tensor imaging and T2 relaxometry of bilateral lumbar nerve roots: feasibility of in-plane imaging. NMR Biomed. 2013 Jun; 26(6):630-7.
    View on PubMed
  8. Leker RR, Molina C, Cockroft K, Liebeskind DS, Concha M, Shuaib A, De Deyn PP, Burgin WS, Gupta R, Dillon W, Diener HC. Effects of age on outcome in the SENTIS trial: better outcomes in elderly patients. Cerebrovasc Dis. 2012; 34(4):263-71.
    View on PubMed
  9. Hess CP, Dillon WP. Imaging the pituitary and parasellar region. Neurosurg Clin N Am. 2012 Oct; 23(4):529-42.
    View on PubMed
  10. Waung MW, Grossman AW, Barmada SJ, Josephson SA, Dillon WP, Ralph JW. Pearls & oy-sters: the use of CT venography in Hirayama disease. Neurology. 2012 Jul 31; 79(5):e38-40.
    View on PubMed
  11. Gilbert AL, Dillon WP, Horton JC. Blepharospasm in a patient with pontine capillary telangiectasia. Ophthal Plast Reconstr Surg. 2012 Jul-Aug; 28(4):e92-3.
    View on PubMed
  12. González RG, Lev MH, Goldmacher GV, Smith WS, Payabvash S, Harris GJ, Halpern EF, Koroshetz WJ, Camargo EC, Dillon WP, Furie KL. Improved outcome prediction using CT angiography in addition to standard ischemic stroke assessment: results from the STOPStroke study. PLoS One. 2012; 7(1):e30352.
    View on PubMed
  13. Shuaib A, Bornstein NM, Diener HC, Dillon W, Fisher M, Hammer MD, Molina CA, Rutledge JN, Saver JL, Schellinger PD, Shownkeen H. Partial aortic occlusion for cerebral perfusion augmentation: safety and efficacy of NeuroFlo in Acute Ischemic Stroke trial. Stroke. 2011 Jun; 42(6):1680-90.
    View on PubMed
  14. Yuh EL, Dillon WP. Intracranial hypotension and intracranial hypertension. Neuroimaging Clin N Am. 2010 Nov; 20(4):597-617.
    View on PubMed
  15. Hussain MS, Bhagat YA, Liu S, Scozzafava J, Khan KA, Dillon WP, Shuaib A. DWI lesion volume reduction following acute stroke treatment with transient partial aortic obstruction. J Neuroimaging. 2010 Oct; 20(4):379-81.
    View on PubMed
  16. Desikan RS, Cabral HJ, Settecase F, Hess CP, Dillon WP, Glastonbury CM, Weiner MW, Schmansky NJ, Salat DH, Fischl B. Automated MRI measures predict progression to Alzheimer's disease. Neurobiol Aging. 2010 Aug; 31(8):1364-74.
    View on PubMed
  17. Ahn AH, Berman BD, Dillon WP. Spontaneous intracranial hypotension-hypovolemia associated with tacrolimus. Headache. 2010 Sep; 50(8):1386-9.
    View on PubMed
  18. Barajas RF, Hodgson JG, Chang JS, Vandenberg SR, Yeh RF, Parsa AT, McDermott MW, Berger MS, Dillon WP, Cha S. Glioblastoma multiforme regional genetic and cellular expression patterns: influence on anatomic and physiologic MR imaging. Radiology. 2010 Feb; 254(2):564-76.
    View on PubMed
  19. Smith WS, Lev MH, English JD, Camargo EC, Chou M, Johnston SC, Gonzalez G, Schaefer PW, Dillon WP, Koroshetz WJ, Furie KL. Significance of large vessel intracranial occlusion causing acute ischemic stroke and TIA. Stroke. 2009 Dec; 40(12):3834-40.
    View on PubMed
  20. Hope TA, Hope MD, Purcell DD, von Morze C, Vigneron DB, Alley MT, Dillon WP. Evaluation of intracranial stenoses and aneurysms with accelerated 4D flow. Magn Reson Imaging. 2010 Jan; 28(1):41-6.
    View on PubMed

Go to UCSF Profiles, powered by CTSI