Endovascular Reconstruction with the Willis Covered Stent for the Treatment of Large or Giant Intracranial Aneurysms

<i>Background:</i> The purpose of this study was to evaluate the feasibility, safety and efficacy of endovascular treatment of large or giant intracranial aneurysms with the Willis covered stent. <i>Methods:</i> Nineteen patients, each with a large or giant intracranial aneurysm, were treated with the Willis covered stent. Of these 19 aneurysms, 6 were giant and 13 were large; 18 were located in the cranial internal...