Affiliation: | 1. Department of Radiology, Section of Interventional Radiology, Rush University Medical Center, 1725 W. Harrison St., Suite 450, Chicago, IL 60612;2. Department of Cardiovascular Surgery, Rush University Medical Center, 1725 W. Harrison St., Suite 450, Chicago, IL 60612;3. Department of Radiology, Palos Community Hospital, Palos Heights, Illinois |