Introduction. Flow diverters have dense woven wire structures and can direct blood flow away and promote thrombosis within cerebral aneurysms after deployment across the aneurysm neck, resulting in subsequent aneurysm occlusion1,2. Ever since the Pipeline embolization device (Medtronic, Irvine, CA, USA), the first flow diverter, was approved for clinical use in 2008, an increasing number of cerebral aneurysms have been treated with flow diverters, especially large, giant, and irregular ane...