Treatment of Distal Internal Carotid Artery Aneurysm with the Willis Covered Stent: A Prospective Pilot Study

Purpose To evaluate the flexibility and efficacy of the Willis covered stent in the treatment of distal internal carotid artery (DICA) aneurysms. Materials and Methods The study was approved by the authors' institutional review board, and the research was conducted by the authors' institution and the MicroPort Medical Company (Shanghai, China). Thirty-one patients with 33 DICA aneurysms were considered for treatment with a Willis covered stent....