抄録
Recently, transcatheter arterial embolization (TAE) including coil packing for visceral artery aneurysms (VAAs) has been widely used as a treatment alternative to surgical ligation. However, recanalization or coil compaction may occur in approximately 35% of cases after packing using bare platinum coils. Therefore, high packing density of 24 % for an aneurysmal lumen is re-quired minimally for stable occlusion. When tight packing is planned before the procedure, not only coil type but also catheter selection should be also well-considered in advance to obtain a good support. The selections among various devices, including guiding catheter and the compatibility between the coil and the microcatheter, are essential to smooth delivery of coils without any trouble including stacking, snaking, or pushing back of the coils. In addition, the order of many various detachable coils is important for tighter packing. In this article, we report some technical tips focusing on coil packing of visceral artery aneurysms for acquiring higher packing density.
