Feasibility and Safety Study of the Endologix Fenestrated Stent Graft System

Inclusion Criteria: * Adequate iliac/femoral access compatible with the required delivery systems * Non-aneurysmal infrarenal aortic neck \<15mm in length * Most caudal renal artery to aortoiliac bifurcation length \>= 70 * SMA to aortoiliac bifurcation length \>=90mm * Proximal non-aneurysmal aortic neck below the SMA with diameter 18 to 34 mm, length \>=15mm and angle \<=60° to the aneurysm sac * Angle \<=60° (clock face) between the SMA and CA * Renal arteries both at or below the SMA by \<=35mm and within 30mm of each other axially, with 4 to 8mm lumen diameter, and with clockface angle of 90° to 210° to each other * Common iliac artery distal fixation site with: distal fixation length \>=15mm, with diameter \>=10 mm and \<=23 mm and angle \<=90° to the aortic bifurcation * Ability to preserve at least one hypogastric artery Exclusion Criteria: * Life expectancy \<2 years as judged by the investigator * Psychiatric or other condition that may interfere with the study * Participating in the enrollment or 30-day follow-up phase of another clinical study * Known allergy to any device component * Coagulopathy or uncontrolled bleeding disorder * Contraindication to contrast media or anticoagulants * Ruptured, leaking, or mycotic aneurysm * Aortic dissection Serum creatinine (S-Cr) level \>2.0 mg/dL * Traumatic vascular injury * Active systemic or localized groin infection * Connective tissue disease (e.g., Marfan's Syndrome) * Recent(within prior three months)cerebrovascular accident * Recent(within prior three months)myocardial infarction * Prior renal transplant * Length of either renal artery to be stented \<12mm * Significant occlusive disease or calcification of either renal artery (\>70%) * An essential accessory renal artery * Indispensable inferior mesenteric artery * Untreated aneurysmal disease of the descending thoracic aorta * Clinically significant mural thrombus circumferentially in the suprarenal segment * Prior iliac artery stent implanted that may interfere with delivery system introduction * Unsuitable vascular anatomy * Pregnancy