Canadian Study of the MicroVention Flow Re-Direction (FRED) Endoluminal Device Stent System in the Treatment of Intracranial Aneurysms

Inclusion Criteria: * Subject whose age is ≥ 18 years; * Subject has a single target aneurysm located in the following zones: * Zone 1 - Petrous through cavernous of the ICA * Zone 2 - Ophthalmic segment of the ICA * Zone 3-Posterior Circulation, basilar artery (not including the basilar bifurcation), vertebral artery * Subjects with a single target intracranial aneurysm located along the internal carotid artery, or the vertebral or basilar artery for whom existing endovascular options (coiling, stent-assisted-coiling) could be ineffective or because aneurysm is predisposed to recurrence due to having any of the following characteristics: * Aneurysms with a neck \> 4mm, dome to neck ratio ≤2 or no discernible neck * Fusiform aneurysms of any size requiring treatment; * The parent artery must have a diameter of 2.5 - 5.0mm distal/proximal to the target intracranial aneurysm (IA); * Subject fulfills study requirements, and the subject or his/her legally authorized representative provides a signed informed consent form; * Negative pregnancy test in a female subject who has had menses in the last 24 months; * Subject is willing to return for the 1-month and 6-month follow-up evaluations Exclusion Criteria: * Subject who is pregnant or breastfeeding; Subject who suffers from a subarachnoid hemorrhage in the last 60 days; * Subject who suffers from any intracranial hemorrhage in the last 30 days; * Subject currently undergoing radiation therapy for carcinoma or sarcoma of the head or neck region; * Subject with stenosis of the parent artery (\>50%) proximal to the target aneurysm; * Subject with known platelet dysfunction or a contraindication to or inability to tolerate anticoagulants/antiplatelet agents; * Subject with contraindications or severe allergies to anticoagulants or antiplatelet medications (aspirin, heparin, ticlopidine, clopidogrel, prasugrel or ticagrelor); * Subject with known hypersensitivity to metal, such as nickel-titanium and metal jewelry * Subject with documented contrast allergy, or other condition, that prohibits imaging. * Evidence of active bacterial infection at the time of treatment; * Subject who has had a previous intracranial stenting procedure associated with the target aneurysm; * Subject with life-threatening diseases.