Packing of a Splenic Artery Aneurysm Using a Novel Hydrogel-Coated Coil

Abstract

We report our initial experience with embolization of a splenic artery aneurysm in a woman in her 50s using the combination of large-diameter, hydrogel-coated detachable coils and a large-bore, high-flow microcatheter. The 20-mm diameter splenic artery aneurysm was packed densely with 10 hydrogel-coated coils, and the volume embolization ratio after full hydrogel expansion was 50.7%, a strikingly high value. Excellent occlusion was achieved with a small number of hydrogel-coated coils, which yield high volumes. This procedure can reduce the need for retreatment.