The current observational evaluation is designed to evaluate the performance of the Axium™ MicroFx™ Detachable Coil System for the treatment of intracranial aneurysms in the real life practice.

Up to 25 patients from from US centers are anticipated to be enrolled for this evaluation. Published literature on coils with electrolytic, thermal or hydraulic detachment will serve as the basis for control comparisons to the Axium™ MicroFx™ Detachable Coil System for patients undergoing embolization of intracranial aneurysm. Comparison will be based on criteria evaluating the safety of the procedure, the reliability of detachment, the occlusion stability and the packing density impact.

Inclusion Criteria:

• Confirmed diagnosis of one or more intracranial aneurysm, either ruptured or unruptured.
• Information on data collection provided to the patient or legally authorized representative and signed informed consent.
• Aneurysm diameter ≤10mm
• Age range of 18 - 90.

Exclusion Criteria:

• Aneurysm previously treated.
• Aneurysm AVM related or dissecting.
• Participation in a clinical investigation of other aneurysm treating or related devices.
• Any condition that would preclude the conduct of protocol follow-up.
• Aneurysm anatomy that is determined inappropriate for Axium coil placement, prior to opening of an Axium coil.

All patients presenting with an intracranial aneurysm will be evaluated by the neuro interventional team, in accordance with institutional practice, to establish an appropriate treatment plan based on the patient's medical condition and available diagnostic screening prior to recruitment.