Another thing I forgot to mention.
The other option of repair of aneurysm is clipping. This means surgery where the neurosurgeon opens up your skull, and put clipping, put a metal clip over the aneurysm. This is a open method. I would think the risks involved would depend a little bit on the location of the aneurysm.
You would have a longer recovery time.
Sometimes this is the method they choose if they can not reach the aneurysm via the endovascular method.

So, your doctors will have to explain the different methods, and all of you make a decision.