Reduction in Volume and Prolonged Shrinkage of Brain Aneurysms After Combined Endovascular Interventions

The goal of this observational study is to learn about the long-term effects of combined endovascular interventions in participants over the age of 18 who take endovascular interventions employing endoluminal flow diverter stents, with or without coils, and a hybrid approach of combining bypass anastomosis and parent artery occlusion using the endovascular method to treat their giant symptomatic intracranial aneurysms. The main question it aims to answer is: • How does the methods of endovascular intervention chosen affect the value of the aneurysmal sac shrinkage and volume reduction? Participants underwent endovascular intervention at the hospital will be recruited with further follow-up of 6, 12, and 24 months.