A Multicenter Prospective Study of New Flow Diverter Stent on the Treatment of Intracranial Aneurysms in China

Inclusion Criteria: * Signed informed consent form and agreement to comply with protocol requirements. Age 22 to 80 years. Diagnosed with intracranial wide-neck aneurysm and planned for treatment with a flow diverter stent. Parent artery distal/proximal diameter compatible with available sizes and models of flow diverter stents, and treatment to be performed in accordance with the China NMPA-approved indications and instructions for use. Exclusion Criteria: * Need for treatment of another aneurysm in the affected territory of the target aneurysm using a different therapeutic modality during the study period. Prior intracranial implant (e.g., coils) in the target intracranial aneurysm territory within 6 months before enrollment. Prior surgery, including endovascular treatment, within 30 days before enrollment. Modified Rankin Scale (mRS) score ≥ 3. Any known contraindication to flow diverter stent treatment or antiplatelet therapy, including contraindications to dual antiplatelet therapy (DAPT). Pre-existing stent/flow diverter placed in the parent artery of the target aneurysm location. Investigator judges that the patient's health or the validity of study results (e.g., high risk of neurological events, conditions that may increase the chance of stroke) could be compromised by study participation. Women who are pregnant, breastfeeding, or planning to become pregnant during the study period. Known allergy to platinum or cobalt-chromium alloys (including major elements: platinum, cobalt, chromium, nickel, or molybdenum).