I am new to this site too.. And I had a brain aneurysm clipped after it ruptured, that was 4 years ago.. 3 weeks ago I had an MRI and it showed a new one measuring 2.5mm.. My last one ruptured at 1cm! Am now waiting for an appointment with the neurosurgeon, have wondered what I will do if presented with the same question you are asking.. Am hoping this one can be coIled.. Fingers crossed.. Tasha