Fluoroscopic, radiographic, and histology views of vessels implanted with an Amplatzer Vascular Plug occlusion device at 30 days (A), IMPEDE Embolization Plug at 30 days (B) and 60 days (C), Nester Embolization Coils at 60 days (D), and IMPEDE Embolization Plug at 90 days (E). Red arrows indicate the direction of blood flow. Yellow asterisk indicates contrast downstream, indicative of recanalization. X-ray images are oriented with the proximal end (i.e., upstream) of the devices at the top of the image.