Koji Takeda, MD

Darryl Abrams, MD is an Associate Professor of Medicine and a medical intensivist and ECMO attending at NewYork-Presbyterian/Columbia University Irving Medical Center. He is the Associate Medical Director and Director of Research of the Medical ECMO Program at the Center for Acute Respiratory Failure, as well as Medical Director of Intermediate Care and Pre-Critical Care Services. He has been actively involved on several committees within international ECMO organizations, including the International ECMO Network (ECMONet) and the Extracorporeal Life Support Organization (ELSO). Areas of clinical and research expertise include the role of Extracorporeal Life Support (ECLS) in acute and chronic respiratory failure and pulmonary hypertension, with particular interest in the ethical implications of increasingly sophisticated life-sustaining technologies.

Dr. Ernst Garçon is board certified in diagnostic radiology with subspecialty training in neuroradiology. He is an associate professor of radiology at Columbia University Irving Medical Center and an attending radiologist at NewYork-Presbyterian Hospital. In addition to his clinical responsibilities, he is the associate chair of community outreach for the Department of Radiology. He also teaches and supervises radiology residents and medical students. Dr. Garçon has extensive experience in all aspects of neuroimaging and a clinical focus on non-vascular neurointerventional procedures and neurodegenerative imaging. He is a member of the Radiological Society of North America, American College of Radiology, American Society of Neuroradiology, and the American Society of Spine Radiology. Dr. Garçon's extensive global health work has led to significant improvements for diagnostic imaging in Haiti. In partnership with several global health foundations and organizations, he helped to develop Haiti's first radiology residency program and helped launch the first radiologic technologist program in the country. He has also organized and provided on-site radiology education for physicians and residents at the State University of Haiti Hospital in Port au Prince and has hosted several externships for Haitian residents at Columbia. Dr. Garçon is a co-chair of the Department of Radiology's Diversity Committee, promoting the recruitment and development of minority faculty. His work is focused on inspiring young students with disenfranchised backgrounds who are interested in medicine and wish to pursue a career in radiology.

Margarita Chernovolenko is a board certified cardiologist with a special focus on advanced cardiac imaging. She is an Assistant Professor in the Division of Cardiology in the Department of Medicine, and an Assistant Professor of Medicine (in Radiology) at Columbia University Irving Medical Center. Dr. Chernovolenko’s areas of expertise include cardiovascular SPECT, cardiac PET, viability testing, 99m Technetium Pyrophosphate Scintigraphy, coronary CTA, and vascular ultrasound. She sees patients in her clinical office practice and serves on the attending staff to patients admitted to CUIMC.After graduating from Barnard College cum laude in 2011, Dr. Chernovolenko received her medical degree at the Jacobs School of Medicine at the University of Buffalo. She completed her residency in Internal Medicine and her fellowship in General Cardiology at Mount Sinai Beth Israel In New York City. She completed her advanced fellowship in cardiac imaging at Columbia University Irving Medical Center. Dr. Chernovolenko is board certified in cardiovascular disease, nuclear cardiology, comprehensive echocardiography, vascular medicine, and internal medicine.