[1] Univ Washington, Harborview Med Ctr, Dept Radiol, Sect Intervent Angiog, Seattle, WA 98104 USA
[2] Univ Washington, Harborview Med Ctr, Dept Surg, Div Cardiothorac Surg, Seattle, WA 98104 USA
[3] Univ Washington, Harborview Med Ctr, Dept Surg, Div Vasc Surg, Seattle, WA 98104 USA