Division of Interventional Neuroradiology

Nestor R. Gonzalez, M.D., UCLA Medical Center

Nestor R. Gonzalez, M.D.


Associate Professor of Neurosurgery and Interventional Neuroradiology
Department of Radiological Sciences
Ronald Reagan UCLA Medical Center
Los Angeles, California 90095
Tel: 310-267-8761
       310-267-8762


Nestor R. Gonzalez, M.D.

Biography:

Education
Medical Degree
1988-1993  University of El Rosario,
School of Medicine
Fundacion Santa Fe de Bogota
Bogota, Colombia

Medical Internship
1993-1995  University of El Rosario,
School of Medicine
Fundacion Santa Fe de Bogota
Bogota, Colombia

Radiology Residency
1995-1999  University of El Rosario School of Medicine
Bogota, Colombia

Surgical Internship
2001-2002  Department of Surgery
David Geffen School of Medicine at UCLA

Neurosurgery Residency
2002-2007  Division of Neurosurgery
David Geffen School of Medicine at UCLA

Fellowship
2004-2006  Division of Interventional Neuroradiology,
David Geffen School of Medicine at UCLA


Medical Board Certifications/Licenses
Colombian Medical Board (1993)
Educational Commission for Foreign Medical Graduates (1996)
Colombian Association of Medical Schools (Radiology Specialty-1999)
California Medical Board (2003)
DEA (2003)
Board of Neurological Surgery (Board eligible)


Academic Appointments
1993-1998  Associated Instructor in History of Medicine, and Medical Ethics,
University of El Rosario. School of Medicine
Bogota, Colombia

1998-1999  Assistant Professor in History of Medicine, and Medical Ethics,
University of El Rosario School of Medicine
Bogota, Colombia

1999  Assistant Professor in Diagnostic Radiology,
University of El Rosario School of Medicine,
Bogota, Colombia

1999-2001  Visiting Assistant Professor,
Division of Interventional Neuroradiology,
University of California at Los Angeles

2007-Present  Assistant Professor,
Divisions of Neurosurgery and Interventional Neuroradiology
University of California at Los Angeles


Memberships in Professional Organizations
  • Colombian Academy of Medicine (Since 1998)
  • Colombian Society of Medical History (Since 1998)
  • Colombian Medical Federation (Since 1996)
  • American Medical Association (Since 2003)
  • Congress of Neurological Surgeons (Since 2002)
  • American Association of Neurological Surgeons
    • Section on Tumor (Since 2002)
    • Section on History of Neurological Surgery (Since 2004)
    • Section on Cerebrovascular Surgery (Since 2005)
  • American Heart Association
    • Stroke Council (2007)
    • Council on Cardiovascular Radiology and Intervention (2007)

Honors and Awards
  • "The Michael Brothers Memorial Award" Best Paper in Interventional and Therapeutic Neuroradiology conferred by the American Society of Neuroradiology. Boston April 21-27, 2001.
  • National Radiology Award conferred by the Colombian Radiology Association to the best original research work (1997)
  • Medal "José Vicente Castro Silva". Award to the Highest Grades in the School of Medicine - Highest grades in the history of the School of Medicine. (1988-1993)
  • "Collegialium Majoris Collegu Majoris Sanctissimae Virginis de Rosario", Highest Honor conferred to the Best Student of the University of El Rosario. (1988-1993)

Editorial Boards
  • Reviewer for Stroke, Neurosurgery, and Surgical Neurology

Research Projects/Interests
 

Dr. Nestor Gonzalez has a very unique training with completed residences in Radiology and in Neurosurgery and with additional training in Interventional Neuroradiology. Since his arrival to the Interventional Neuroradiology Division at UCLA in 1999, he has participated in numerous research projects where his contributions have been key for the development of the research plans, analysis of data, and publication of the research results in prestigious national and international medical journals and books. He has been active part of the development of the generation of bioactive coils for the treatment of intracranial aneurysms, which results have been object of several publications. He directly participated in the development and analysis of the animal studies that lead to the FDA approval of these coils, which have opened a new spectrum of possibilities incorporating bioactive components for the treatment of aneurysms.

He participated in the development of the "Merci" device, initially known as "Concentric Retrieval" device, which is the first mechanical device approved in the US for the endovascular treatment of ischemic stroke. He also participated in the analysis and publication of the animal studies for the long-term evaluation of a recently approved embolic material (Onix, previously known as Embolyx) and the initial clinical experience using this material for head and neck vascular lesions.

In addition to this research Dr. Gonzalez has been actively involved in clinical research, leading several projects in both the Endovascular and Neurosurgery Divisions at UCLA. He has analyzed and published one of the largest series of unruptured intracranial aneurysms, analysis that has emphasized the importance of some anatomical characteristics of these lesions. He is currently working in a detail analysis of the impact of numerous geometric features that may alter the efficiency of endovascular treatment of aneurysms and that would play a fundamental role in the decision algorithm of treatment for these lesions. Preliminary results of this analysis have been presented in National Cerebrovascular meetings.

He also has several publications in neurocritical care for patients with cerebrovascular disease, field in which he has lead the investigation of a mathematical model developed by him that allows to predict vasospasm of the cerebral arteries in patients with aneurismal subarachnoid hemorrhage combining clinical factors of each patient with transcranial Doppler measures and cerebral blood flow measures. The results of the first part of this research have been accepted for publication in the November 2007 issue of the Journal of Neurosurgery, and they have been presented in several Neurosurgical and Cerebrovascular meetings. He is currently developing a prospective phase for this project that includes subarachnoid blood volume analysis and cerebral perfusion studies to the previously included factors to improve the accuracy of the predictive model. Given his interest and contributions in neurocrital care, he has been invited to write book chapters in international books in the critical care of patients with cerebrovascular injuries for the Oxford University Press and the editorial house Mason from Spain.

Dr. Gonzalez has additional interests in history of medicine and medical ethics, fields that he cultivated in his native country. He published numerous articles and ethical discussions, as well as papers and reviews in medical history. He was designated editor of the "Heraldo Medico" journal devoted to legal and ethical issues published by the Colombian Medical Federation and for several years work as Assistant Professor of History of Medicine and Medical Ethics in his medical school at the Rosario University, one of the most traditional and prestigious schools of Medicine in Latin-America, where he was honored with the equivalent of the Summa Cum Laude, Collegialium Majoris, and a medal for the highest grades ever in the history of the medical school.


Selected Publications
  1. Gonzalez NR, Boscardin J, Gleen T, Vinuela F, Martin N. Vasospasm Probability Index: A Combination of TCD Velocities, Cerebral Blood Flow, and Clinical Risk Factors to Predict Cerebral Vasospasm After Aneurysm Subarachnoid Hemorrhage. Accepted for Publication. J Neurosurg, November 2007.

  2. Gonzalez NR, Duckwiler G, Jahan R, Murayama Y, and Vinuela F. Challenges in the Endovascular Treatment of Giant Intracranial Aneurysms. Neurosurg, 2006 Nov; 59(5 SUPPL 3): S113-S124.

  3. Gonzalez NR, Comments to Balloon-Expandable Stenting With or Without Coiling for Wide-Neck and Complex Aneurysms. Surg Neurol 2006. 66:610.

  4. Gonzalez NR, Patel A, Murayama Y, Vinuela F. Angiographic Evidence of Aneurysm Neck Healing Following Endovascular Treatment with a Bioactive Coils. AJNR American Journal of Neuroradiology 2005 Apr; 26(4): 912-4.

  5. Gonzalez NR, Murayama Y, Nien YL, Martin N, Frazee J, Duckwiler G, Jahan R, Gobin YP, Vinuela F. Treatment of Unruptured Aneurysms with GDCs: Clinical Experience with 247 Aneurysms. AJNR American Journal of Neuroradiology 2004 April; 25:577-583.

  6. Murayama Y, Tateshima S, Gonzalez NR, Vinuela F. Matrix and Bioabsorbable Polymeric Coils Accelerate Healing of Intracranial Aneursyms: Long-Term Experimental Study. Stroke 2003 Aug;34(8): 2031-7. 2003 Jul 17.

  7. Oskouian RJ, Martin NA, Lee JH, Glenn TC, Gutrie D, Gonzalez NR, Afari A, Vinuela F. Multimodal Quantitation of the Effects of Endovascular Therapy for Vasospasm on Cerebral Blood Flow, Transcranial Doppler Ultrasonographic Velocities, and Cerebral Artery Eiameters. Neurosurg 2002 Jul;51. (1):30-41.

  8. Murayama Y, Vinuela F, Tateshima S, Gonzalez NR, Song JK, Mahdavieh H, Iruela-Arispe L. Cellular Responses of Bioabsorbable Polymeric Material and Guglielmi Detachable Coil in Experimental Aneurysms. Stroke 2002; 33:1120-1128.

  9. Gobin P, Murayama Y, Milanese K, Cho K, Gonzalez NR, Duckwiler GR, Vinuela F. Head and Neck Hypervascular Lesions: Embolization with Ethylene Vinyl Alcohol Copolymer--Laboratory Evaluation in Swine and Clinical Evaluations in Humans. Radiology 2001 Nov; 221 (2): 309-17.

  10. Gonzalez NR, Canale A, Vinuela F. Critical Care in Cerebrovascular Diseases. Neurointerventionist 2001; 2:82-94 (Leading Article).

  11. Murayama Y, Vinuela F, Tateshima S, Song JK, Gonzalez NR, Wallace MP. Bio-Absorbable Polymeric Material (BPM) Coils for Embolization of Intracranial Aneurysms: Preliminary Experimental Study. J Neurosurg 2001; 94: 454-463.

  12. Gonzalez NR, Madero G, Camargo C et al. Efficacy of the MR-Angio in the Diagnosis of Occlusive Arterial Disease of the Lower Limbs. Revista Colombiana de Radiología 1997; 9: 222-230.

Book Chapters
  1. Gonzalez NR, Khoo L, Fessler R. Radiographic Evaluation of Spinal Cord Injury. In Surgical Management of Spinal Cord Injury. Published by Blackwell Publishing, Malden, Massachusetts, 2007.

  2. Vinuela F, Gonzalez NR. Neurorradiologia Intervencionista en Fistulas Arteriovenosas Intracraneales de Alto Flujo. In Nuerorradiologia Diagnostica y Terapeutica. Published by Masson, S.A., Barcelona, 2004, pp. 765-777.

  3. Gonzalez NR, Canale A. Cuidado Intensivo Del Paciente Con Enfermedad Vascular Cerebral. In Nuerorradiologia Diagnostica y Terapeutica. Published by Masson, S.A., Barcelona, 2004, pp. 699-726.

  4. Gonzalez NR, Canale A, Vinuela F. Critical Care in Cerebrovascular Diseases. In Interventional Neuroradiology: Theory and Practice. Published by Oxford University Press, London, 2002, pp. 347-364.

  5. Gonzalez NR, Guzman F, Vargas F, Garcia CF. Immunosuppression in Cardiac Transplant. In Cardiovascular diseases II. Published by Merck Sharp & Dohme, Santafe de Bogota, 1994, pp. 185-209.

  6. Gonzalez NR, Guzmán F, Vargas F, Bernal M, Arango E. Cardiomyoplasty. In Cardiovascular diseases II. Published by Merck Sharp & Dohme, Santafe de Bogota, 1994, pp. 55-75.

  7. Gonzalez NR, Guzmán F, Vargas F, Bernal M. Molecular Basis of Congestive Heart Failure. In Cardiovascular diseases II. Published by Merck Sharp & Dohme, Santafe de Bogota, 1994, pp. 9-28.

Books
  1. Guzmán F, Vargas F, Bernal M, Gonzalez NR. (Editors). Cardiovascular Diseases II. Published by Merck Sharp & Dohme, Santafe de Bogota, 1994.

  2. Patińo JF, Guzmán F, Gonzalez NR, Arroyo S. (Editors). Operating Rooms. Published by Fundacion Santa Fe, Santafe de Bogota, 1995.

  3. Guzmán F, Morales MC, Franco E, Mendoza-Vega J, Gonzalez NR, Arrázola P, Herrera F. (Editors). Civil Responsibility in Medicine. Published by Dike Edit., Medellin, 1995.

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