Dr. Chazen is a board certified radiologist specializing in Neuroradiology. He is an Associate Attending Radiologist at HSS and an Associate Professor of Radiology at Weill Cornell Medicine.
After earning his BS degree, with departmental and university honors, in Biomedical Engineering from the Johns Hopkins University in 2002, he was awarded his MD degree, magna cum laude, in 2007 from Jefferson Medical College, Philadelphia, PA. He graduated top 5 in his class and was inducted into the Alpha Omega Alpha (AOA) medical honor society.
Following an internship in Internal Medicine, Dr. Chazen completed a Diagnostic Radiology residency (2008 – 2012) at NewYork-Presbyterian Hospital/Weill Cornell Medicine. He achieved board certification in Diagnostic Radiology from the American Board of Radiology in July 2012. Dr. Chazen went on to complete a Neuroradiology fellowship at University of California, San Francisco (UCSF) Medical Center. He joined the Weill Cornell Medicine Department of Radiology faculty in August 2013 where he served as the Neuroradiology fellowship program director and was promoted to Associate Professor of Radiology on a track recognizing clinical excellence, academic achievement, and innovation. Dr. Chazen joined the HSS faculty in 2021 as the Director of Spine Imaging.
Dr. Chazen's clinical expertise is in Neuroradiology with a focus on spine imaging and imaged-guided spine interventions. He interprets a variety of studies including radiographs, CT, and MRI involving the brain, spine, and the head and neck as well as performing neuro-interventional procedures such as CT and fluoroscopic guided nerve blocks, facet blocks, epidural injections, epidural blood patch, lumbar punctures and myelography.
Dr. Chazen has extensive experience in the diagnosis and treatment of spinal CSF leak (spontaneous intracranial hypotension) and multiple publications on the topic. In addition to brain and spine MRI, he performs CT myelograms (including dynamic CTM), MR myelograms, and digital subtraction myelograms to precisely localize the site of spinal fluid leak. He also delivers a variety of targeted image-guided treatments such as CT guided epidural blood patches and fibrin glue injections. Dr. Chazen treats patients with a variety of CSF leak etiologies including post lumbar puncture headache, dural tears, spinal meningeal diverticula (perineural cysts), and CSF-venous fistula.
Dr. Chazen's research interests include the diagnosis and treatment of CSF leaks and CT-guided minimally invasive spine procedures. He serves as a peer reviewer for many prestigious journals and serves on the editorial board for the American Journal of Neuroradiology (AJNR). In addition to clinical and research activities, Dr. Chazen is actively engaged in the education of medical students, residents, and fellows at HSS.
Computed Tomography (CT)
Magnetic Resonance Imaging (MRI)
Spine imaging and interventions
Fluoroscopic and CT-guided spine and head/neck interventions
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Director of Spine Imaging, Hospital for Special Surgery
Associate Attending Radiologist, Hospital for Special Surgery
Associate Professor of Radiology, Weill Cornell Medicine
American Medical Association (AMA)
American Roentgen Ray Society (ARRS)
American Society of Neuroradiology (ASNR)
American Society of Spine Radiology (ASSR)
Radiological Society of North America (RSNA)
American Board of Radiology, Diagnostic Radiology
Certificate of Added Qualification, Neuroradiology
New York Super Doctors, 2018-2021
Weill Cornell Radiology Teaching Award Nominee, 2014-2020
Best Mentored Scientific Abstract, Radiologic Society of North America, 2017
Best Mentored Paper, American Society of Spine Radiology, 2015
Jefferson Medical College Alpha Omega Alpha (AOA) National Medical Honor Society, 2006
Jefferson Medical College Hobart Amory Hare Medical Honor Society, 2005
Jefferson Medical College Foerderer Scholarship for Medical Study Abroad, 2004
John Hopkins University Departmental and General University Honors, 2002
Jefferson Medical College, 2007
St. Vincent Hospital, 2008
NewYork-Presbyterian Hospital/Weill Cornell Medicine, 2012
University of California at San Francisco, 2013
Roytman M and Chazen JL. CT-Guided Radiofrequency Ablation in Treatment of Spine Disease in the Elderly: Cutting Edge Techniques and Technologies, edited by Kai-Ming Fu and Michael Virk. New York, NY: Springer Publishing; 2021.
Chazen JL, Phillips CD, Shatzkes D. Orbit and Eye in Magnetic Resonance Imaging of the Brain and Spine, 5th ed, edited by Scott Atlas, MD. Philadelphia, PA: Wolters Kluwer Health; 2015.
Chazen JL and Phillips CD. Parathyroid imaging and evaluation of primary hyperparathyroidism in Rotations in Neuroradiology, edited by Zoran Rumboldt, Clifford Eskey, Giulio Zuccoli, Timothy Amhrein, and Benjamin Huang. New York, NY: Oxford University Press; 2015.
Chazen JL in Case-Based Brain Imaging, 2nd ed, edited by Tsiouris J, Sanelli P, Comunale J. New York, NY: Thieme; 2013 (704 pgs).
Chazen JL et al. MR Myelography for the Detection of CSF-Venous Fistulas. AJNR Am J Neuroradiol. 2020 May;41(5):938-940. doi: 10.3174/ajnr.A6521. Epub 2020 Apr 30.
Dyke JP…Chazen JL (senior author). MRI characterization of early CNS transport kinetics post intrathecal gadolinium injection: Trends of subarachnoid and parenchymal distribution in healthy volunteers. Clin Imaging. 2020 Dec;68:1-6.
Chazen JL et al. CT-guided block and radiofrequency ablation of the C2 dorsal root ganglion for cervicogenic headache. AJNR Am J Neuroradiol. 2019 Jul 4.
Chazen JL et al. MR Neurography of the Lumbosacral Plexus for Lower Extremity Radiculopathy: Frequency of Findings, Characteristics of Abnormal Intraneural Signal, and Correlation with Electromyography. AJNR Am J Neuroradiol. 2018 Nov;39(11):2154-2160.
Chazen JL et al. Percutaneous CT-guided facet joint synovial cyst rupture: Success with refractory cases and technical considerations. Clin Imaging. 2018 May - Jun;49:7-11.
Chazen JL et al. Automated segmentation of MR imaging to determine normative central nervous system cerebrospinal fluid volumes in healthy volunteers. Clin Imaging. 2017 May - Jun;43:132-135.
Cornman-Homonoff J…Chazen JL (last author). CT-guided epidural blood patch for treatment of CSF leak and pseudomeningocele following tethered cord release in a 3-year-old. Clin Imaging. 2016 Nov - Dec;40(6):1191-1194.
Chazen JL et al. Optimal Noninvasive Imaging for Suspected Zygapophyseal (Facet)-Mediated Low Back Pain. PM&R. 2016 Jun;8(6):586-92.
Quinn JC…Chazen JL (senior author) et al. Magnetic Resonance Neurography of the Lumbar Plexus at the L4-L5 Disc: Development of a Preoperative Surgical Planning Tool for Lateral Lumbar Transpsoas Interbody Fusion (LLIF). Spine (Phila Pa 1976). 2015 Jun 15;40(12):942-7.
Chazen JL et al. MR myelography for identification of spinal CSF leak in spontaneous intracranial hypotension. AJNR Am J Neuroradiol. 2014 Oct;35(10):2007-12.
For more publications, please see the PubMed listing.
Chazen JL. MR Guided Focused Ultrasound Cranial Ablation: What's the Evidence? American Society of Neuroradiology (ASNR) 2021 Oral Presentation. Virtual Meeting. May 23, 2021.
Chazen JL. MR Guided Focused Ultrasound Ablation: Cranial Applications. Radiologic Society of North America (RSNA) 2020 Featured Presentation. Virtual Meeting. November 30, 2020.
Chazen JL. MR Myelography in Detection of CSF Leak. American Society of Neuroradiology (ASNR) 2020 Oral Scientific Presentation. Virtual Meeting. June 1, 2020.
Ebani EJ, Kaplitt MG, Chazen JL. Improved Targeting of the Globus Pallidus Interna Using Quantitative Susceptibility Mapping Prior to MR-Guided Focused Ultrasound Ablation in Parkinson's Disease. American Society of Neuroradiology (ASNR) 2019 Oral Scientific Presentation. Boston, MA. May 22, 2019.
Chazen JL. "Pediatric Spinal Cord Injury." Invited Lecture at American Society of Spine Radiology 2019 Annual Symposium. Miami, FL. February 22, 2019.
Chazen JL. "Spinal Cord Demyelinating Disease." Invited Lecture at the American Society of Spine Radiology 2018 Annual Symposium. Scottzdale, AZ. February 14, 2018.
Chazen JL and Kaplitt M. Targeted interruption of the DRT on DTI following MRgFUS for essential tremor. American Society of Neuroradiology (ASNR) 2017 Scientific Paper Oral Presentation. Long Beach, CA. April 26, 2017.
Chazen JL. "Image-Guided Spine Interventions." Invited Faculty Lecture at the Open Medical Institute Salzburg Weill Cornell Seminar on Diagnostic Imaging. Salzburg, Austria. November 12, 2015.
Chazen JL. "MR Neurography: Imaging and Interpretation." Invited Faculty Lecture at the Open Medical Institute Salzburg Weill Cornell Seminar on Diagnostic Imaging. Salzburg, Austria. November 12, 2015.
Chazen JL. "Advanced MR and CT Angiography of the Brain and Spine." Invited Faculty Lecture at the Open Medical Institute Salzburg Weill Cornell Seminar on Diagnostic Imaging. Salzburg, Austria. November 13, 2015.
Advanced MR imaging guidance for MRgFUS cranial ablation
Novel image guided spine interventions
Neuroimaging of cerebrospinal fluid leaks and kinetics
Magnetic resonance neurography imaging.
One of the goals of HSS is to advance the science of orthopedic surgery, rheumatology, and related disciplines for the benefit of patients. Physicians at HSS may collaborate with outside companies for education, research and medical advances. HSS supports this collaboration in order to foster medical breakthroughs; however HSS also believes that these collaborations must be disclosed.
As part of the disclosure process, this website lists physician collaborations with outside companies. The disclosures are provided by information provided by the physician and other sources and are updated regularly. Further information may be available on individual company websites.
As of July 19, 2021, Dr. Chazen reported no relationships with healthcare industry.
By disclosing the collaborations of HSS physicians with industry on this website, HSS and its physicians make this information available to their patients and the public, thus creating a transparent environment for those who are interested in this information. Further, the HSS Conflicts of Interest Policy does not permit physicians to collect royalties on products developed by him/her that are used on patients at HSS.