**Abstract**

Topic: Chapter discussing the indications for treatment of brain aneurysms, endovascular techniques, tips and tricks. 1. Pathophysiology of aneurysms: Discuss the formation of aneurysms, current thinking of aneurysm development 2. Prevalence/Incidence of aneurysms: Discussion of current state of aneurysm prevalence and how it differs in different populations 3. Unruptured Aneurysms: Diagnosis, Management and Treatment: Imaging paradigms of brain aneurysms, current thoughts on how to follow aneurysms which are being observed, different treatment options for unruptured aneurysms, including clipping, coiling, stent assisted coiling, flow diverter stent, flow disruptors, including the medical management of stent placement 4. Ruptured Aneurysms: Diagnosis, Management and Treatment: Imaging paradigms of ruptured aneurysms, management options for co-morbidities associated with aneurysm rupture, treatment options including coiling, clipping, flow diverter stents, flow disruptors 5. Complication Avoidance: Tips and tricks to avoid complications in the treatment of brain aneurysms.

**Keywords:** brain aneurysms, subarachnoid hemorrhage, coils, flow diversion, flow disruption
