Table 1 Different endovascular transcatheter arterial embolisation techniques and their mode of action
From: Technical considerations of endovascular management of true visceral artery aneurysms
Parent artery preservation | |
 Sac packing | Only the aneurysm sac is filled with the embolic material |
 Balloon remodeling or stent-assisted coiling | Balloon catheter is placed across the neck of the aneurysm and acts as a scaffold for coiling or liquid embolisation by the side of the inflated balloon Self-expanding bare stent is placed across the neck of the aneurysm and acts as a scaffold for coil embolisation through the interstices within the stent |
 Multi-layer flow diverting stents | They divert the blood through the vessel lumen with substantially reduced flow through their tight wire mesh away from the aneurysm sac |
Parent artery sacrifice | |
 Trapping (sandwich, isolation, and front-to-back-door techniques): with or without sac packing | Embolic materials (coils or plugs) are deployed distally and proximally to the aneurysm neck |
 Inflow occlusion (proximal embolisation) | Occlusion proximal to the aneurysm neck |