fig 1.
Double-lumen microcatheter placed in the silicone-made aneurysm. A small 1.7F microcatheter system was used for the injection of Onyx (black arrow indicates direction of flow), and a large 2.7F microcatheter system was used for the injection of saline to flush the stagnant DMSO in the aneurysmal sac (white arrows indicate direction of flow)