The main items for review after aneurysm surgery are as follows: 1) monitoring of vital signs, among which blood pressure is very critical to stabilize blood pressure to avoid rebleeding; 2) head imaging, i.e., intracranial CT, to understand whether secondary cerebral infarction is caused after aneurysm surgery or whether new blood is emitted; 3) most importantly, angiography, simply by MRA or CTA angiography, to diagnose the postoperative Whether the aneurysm clamping or embolization is complete afterwards. The gold standard is cerebral angiography, because cerebral angiography, including postoperative three-dimensional rotational imaging and post-imaging processing, can fully understand whether the aneurysm is completely clamped after aneurysm surgery, whether the spring coil can achieve dense filling after embolization, and whether there is recurrence. In addition, if stenting is used intraoperatively, it is also possible to see whether the stent is well opened and whether there is any stenosis, and the angiography can understand whether further surgical intervention is needed at a later stage, so the angiography is very important.