OSUMC Radiology Section of Neuroradiology

Donald Chakeres was born in Columbus, Ohio.  He received his BA degree in Chemistry from Capital University in Columbus in 1972, and his MD degree from Ohio State University in 1975.  He did an internship at Riverside Methodist in Columbus in 1972, and his residency in Radiology at Dartmouth Hitchcock Medical Center in Hanover, New Hampshire ending in 1978. His Neuroradiology fellowship was at the University of Oregon Health Science Center in Portland Oregon in 1979.  He returned to Dartmouth Medical Center as an Instructor and he was then appointed the Head of Neuroradiology at the University of Texas in San Antonio as an Associate Professor until 1985.  From 1985 to 2019 he was the Head of Neuroradiology at the Ohio State University Medical Center where the department acquired the second 1.5 Tesla General Electric MRI system in the country.  He was also the director of the 8 Tesla Research Group.  The 8T group led the world in high field MRI for a number of years and established the safety data related to high field MRI that are still utilized. He wrote a book with Petra Schmalbrock and more than 100 papers with many collaborators. He was the President of the American Head and Neck Society. He was also on many Executive Committees of National and International Organizations including the American Society of Neuroradiology and the International Society of Head and Neck Radiology.  He was on the Editorial Boards of many journals including, Radiology, Journal of the American Society of Radiology, and Neuroradiology.  He also began an interest in basic physics and has published a number of papers in that field. He retired in 2019 as a Professor Emeritus. 

Gregory Christoforidis received his medical degree from Ohio State University in 1990.  He did an internship at Mount Carmel Medical Center in 1991 and his residency at the Ohio State University from 1992 to 1995.  He did fellowships in Neuroradiology at Henry Ford in 1997 and the     USZ-Universitats Spital Zurich in 1998. He is board certified in Diagnostic Radiology.  He has expertise in interventional neuroradiology (neuroendovascular surgery), and diagnostic neuroradiology of the brain, head , neck and spine.  He is skilled in the diagnosis and treatment of patients with acute stroke, aneurysms, arteriovenous fistulas, arteriovenous malformations and other vascular lesions. Dr. Christoforidis has extensive experience with minimally invasive diagnostic and surgical procedures, including thrombolysis, embolectomy, embolisation, aneurysm treatment, AVM treatment, sclerotherapy, spinal augmentation, spinal injections and transcutaneous pain treatment, biopsies, angioplasty, and stenting in the head, neck and spine.  His research focuses on endovascular treatment of acute ischemic stroke.  He is investigating the formation of collateral vessels in the leptomeningeal tissue surrounding the brain and its role in the acute ischemic stroke.

Eric Bourekas was born in Warren, Ohio.  He did his undergraduate studies in Biochemistry at the Ohio State, and he received his MD degree from the University of Cincinnati College of Medicine in 1989.  He completed a residency at UPMC Mercy in Pittsburgh, PA, in 1993 and a fellowship in Neuroradiology at the University Hospitals of Cleveland/Case Western in 1995 and fellowship in Interventional Neuroradiology in 1998 at the Cleveland Clinic. He is board-certified by the American Board of Radiology and Neuroradiology.  I hired Eric when I was the Chairman of Radiology and have known him both professionally and personally.  His contributions to Radiology have been immense.  His contributions in the clinical and research aspects of spinal pathology, spinal tumors, and neuroimaging are nationally recognised. He has served as Vice Chair of Radiology/Clinical Operations and Chief of Neuroradiology at OSUMC.  Dr. Bourekas is now the Chief of Staff, a position to which he was elected by his peers at the medical center a recognition of his advocacy for physicians in all departments, and the first radiologist to hold this position. He has served in many positions including President of Faculty Staff Council for the Medical Center and Senator in the Ohio State University Senate.  He has been a recipient of many teaching awards, and he was recently recognized as a Master Clinician by The Mazzaferri-Ellison Society, an Honorary Society which recognizes outstanding clinicians who excel in clinical practice, teaching, mentoring/role modeling, professionalism, leadership and service to the profession and the OSU Medical Center.  He has also received an Honorary Recognition at the University of West Attica in Athens Greece for his contributions to medicine at large. 

This post if dedicated to Dr. Lucy Freedy, who served as the Vice-Chair of the Department of Radiology during my tenure as the Chairman from 1992-2004.  Lucy was a hard working attending who genuinely cared about the education of the students and residents and also for providing exemplary care to our patients.  Her specialty was breast imaging, but she selflessly contributed wherever the department needed support.  Lucy's dedication and compassion made a lasting impact on all members at the medical center.  Lucy died on March 27, 2026 in her sleep. She will be deeply missed by her family, friends, and all of us who had the privilege of knowing and working with her.

Radiology Department History at The Ohio State University

Wilhelm Röntgen discovered x-rays in 1895, and soon after in 1986, Thomas Edison developed the first fluoroscope.  These advancements marked the beginning of medical imaging.  Radiology's timeline has several key milestones such as the introduction of film in 1918, ultrasound in 1955, computed tomography in 1967, and MRI in 1972.

The Department of Radiology at the The Ohio State University has a long history of leadership in imaging.  In the early years it was likely a division of the Department of Surgery.  It formally appeared as a distinct department in the College of Medicine in 1947. 

The first Radiology Chairman was Dr. Hugh Means who took office in 1947, when the department began offering electives to medical students.

A towering figure in the department was Dr. William G. Myers, a pioneer in Nuclear Medicine.  He was known as the "godfather of cyclotron", and he introduced 11 radioisotopes including cobalt-60 for the treatment of cancer.  In 1952, he introduced Gold-198 for permanent brachytherapy seed implantation, contributing to his legacy as a leader in radioactive isotope applications in medicine.

In the 60s Dr. Sidney W. Nelson became the Chairman. He was a prominent radiologist recognized nationally, holding positions such as President of the Association of University Radiologist in 1965-66, and being was an examiner of the American Board of Radiology. A milestone for the department was that it hosted the 16th annual meeting of the Association of University Radiologists in 1968. Progress in the department continued when Dr. A Feimanis, A J Christoforidis and D. G. Spigos were Department Chairmen and Dr. Reinhard Gahbauer, Dr. John Olsen, and Dr. Charles Mueller were Division heads.  Their contributions will be discussed in future posts. 

The 1980s, the 1990s and the early years of the new century it was a period of technological advancements.  The department continued to lead in neuroimaging bringing the first 1.5T MRI in Ohio which was a precursor to the development of the first ultra-high-field 8 Tesla MRI unit in the world. It also was leader in ultrasound and interventional radiology, nuclear medicine and radiation oncology.  In the 1994 and the department was transformed from a film based to a film-less after the introduction of digital imaging and PACS (picture archiving and communication software), first within the department, the intensive care units and the ED. Another important development was the offer of tele-radiology service to rural hospitals.  

This post is dedicated to Drs. Meyers and Nelson, whose hard work and innovations served as the cornerstones for the department's growth in the                                     decades that followed. 

Ohio State Medical Center - Chiefs of Staff

 2009 - Edward Levine / Internal Medicine-gastroenterology

Dr. Levine is a distinguished gastroenterologist with over 40 years of experience in the field. He earned his MD from the Ohio State University School of Medicine in 1981.  Following his graduation, he completed his internship, residency and fellowship in gastroenterology at OSUMC.  He further honed his experience with an additional fellowship at John's Hopkins in Baltimore, Maryland.  

Throughout his career, Dr. Levine emphasized effective communication with the patients, attentively listening to their concerns and thoroughly informing them about their health.

In addition to his clinical practice, Dr. Levine has held leadership roles, including serving as the Chief of Staff at the Ohio State University Hospital from 2009 to 2011 and as the Interim Division Director of Gastroenterology, Hepatology, and Nutrition from 2011 to 2013.

I have been fortunate to know and worked with Dr. Levine since I joined Ohio State Medical Center in 1992, and I remain grateful for the compassionate  care he provided to my family.

2007 - Amy Pope Harmon / Internal Medicine 

Dr. Harmon is a Professor Emerita at the Ohio State University. During the years she practiced was know for her expertise in Pulmonary Medicine and critical care. 

2005 - Scott Melvin / General Surgery

Dr. Scott Melvin is a Professor of Surgery and the Vice Chairman of the department at Montefiore Einstein University Hospital in the Bronx, New York City. He is nationally  recognized for the use of minimally invasive approaches to the management of gastrointestinal diseases.  He has published expensively in refereed journals about endoscopic treatment of diseases of the esophagus, stomach, pancreas as well as in patients with renal transplants. 

When I joined OSU, Dr. Melvin was a fellow in gastrointestinal surgery and later an attending. During the years I worked with him, I witnessed firsthand not only his exceptional competence, but also his deep compassion and genuine warmth toward patients and colleagues alike. Patients in the Bronx are truly fortunate to have Dr. Melvin caring for them.

2003 Garth Essig / Obstetrics and Gynecology

Dr. Essig was born in the historic city of Longmont, Colorado, known for its outdoor beauty. He grew up in Youngstown, Ohio, and completed his undergraduate studies at DePaul University and earned his MD degree from the Ohio School of Medicine.  He was an Obstetrician and Gynecologist for nearly 50 years at the OSUMC, where he dedicated his life to the medical education and clinical medicine. Over the course of his distinguished career. he taught over 9,000 medical students and delivered almost 10,000 children.  Dr. Essig sadly passed away at the age of 80 in 2016. 

This post is dedicated to the memory of Dr. Garth Essig, a remarkable physician and an even more remarkable human being. Those of us who had the privilege of knowing him admired his wisdom, his kindness, and his unwavering dedication to his patients and colleagues. We were truly fortunate to call him not only a colleague, but a friend. His compassion, integrity, and generosity of spirit left a lasting mark on all of us. Dr. Essig is deeply missed, and his legacy lives on in the countless lives he touched.  

OSUMC Chiefs of Staff

 2017 - Jon Walker / Internal Medicine - Gastroenterology

Dr. Walker joined Ohio Gastroenterology Group, Inc in 2019. He earned his medical degree from the University of Cincinnati and subsequently completed his residency and fellowship at Ohio University. He completed an Advanced Endoscopy fellowship at the Medical College of South Carolina. 

2015 - Elmahdi Elkhammas - Surgery transplants

Dr. Elkhammas is a Professor Emeritus in the Department of Surgery at the Ohio State University, effective September 1, 2020.  Dr. Elkhammas completed his surgery residency at the OSUMC from 1987 to 1991.  He then joint the faculty and became a prominent transplant surgeon, and published research in the field. Upon his retirement he commutes to his home country Libya, and he is involved in quality, ethics, and medical education issues.

2013 - Douglas Sharre - Neurology

Dr. Sharre is a Clinical Professor of Neurology and the Medical Director of the Cognitive and Memory Disorders at the Ohio State University. He specializes in the diagnosis and treatment of neurodegenerative disorders including Alzheimer's disease, dementia with Lewy bodies and frontotemporal lobar degenerations.  Dr. Sharre is among the experts in his field.  His patients appreciate his concern and his quiet demeanor.

2011 - Patrick Vaccaro - Vascular Surgery

Dr. Vaccaro received his MD degree from the University of Cincinnati College of Medicine and has been in practice for more than 20 years.  Dr. Vaccaro is affiliated with several hospitals in Columbus, including James Cancer Hospital and Nationwide Children's.

     This post is dedicated to past and future OSUMC Chiefs of Staff