Demetrius Lopes, MD, director of neuroendovascular surgery at Rush University Medical Center, is highly skilled in neuroendovascular therapy, an innovative approach in treating brain and spinal cord diseases from inside the blood vessels. He specializes in the revascularization of brain including the treatment of brain aneurysms, arteriovenous malformations, cerebral ischemia, stroke and the conditions leading to stroke. Lopes has written many articles and chapters on various aspects of neuroendovascular therapy. He has a special interest and experience with intracranial stents. Lopes began his medical education in 1987 at the Federal University of Rio Grande do Sul in Porto Alegre, Brazil. After completing his doctorate in medicine in 1993, he held a surgical internship at the University of Illinois and Cook County hospitals. In 1994, he accepted a residency in neurology at the Indiana University Medical Center and in 1995 accepted a residency in neurological surgery at the State University of New York at Buffalo. He remained at SUNY-Buffalo, where he completed an endovascular fellowship. Lopes joined the medical staff of Rush University Medical Center in 2001.