⁃ Patients with unruptured intracranial aneurysms who received the intracranial Pipeline Flex with Shield stent.

⁃ Vascular conditions:

‣ 1\) There was no obvious calcification and stenosis of the parent artery. 2) The curvature of the bearing artery is minimal. 3) The parent artery diameter ≥2.5mm

• According to the committee's assessment, only one Pipeline flex with shield is needed for aneurysm treatment.

• Before the stent implantation procedure, standard dual antiplatelet therapy should be administered for at least 3 days.

• Patients with an Modified Rankin Scale(mRS) score of less than 2 on the day of registration.

• The operation was successful, and immediate postoperative angiography indicated good wall apposition.