Reconstructed three-dimensional computed tomography (CT) angiograms of human acellular vessels (HAVs) at 50 to 55 months for seven patients enrolled in the 6-year follow-up study. A, Angiogram at 55 months after HAV femoropopliteal bypass. B, Angiogram at 51 months after HAV femoropopliteal bypass. C, Angiogram at 51 months after HAV femoropopliteal bypass. D, Angiogram at 50 months after HAV femoropopliteal bypass. E, Angiogram at 51 months after HAV femoropopliteal bypass. F, Angiogram at 51 months after HAV femoropopliteal bypass. G, Angiogram at 51 months after HAV femoropopliteal bypass. Red arrows indicate anastomoses and/or the HAV body; and red ovals indicate scale bars.